Activity company data: Customer repurchase rate increased by 40% after using the portable planetarium

It's a crisp Tuesday morning, and I'm sitting in the office of Luminance Events, a mid-sized activity company in Portland that specializes in creating memorable experiences for families, schools, and corporate groups. Sarah, the founder, is flipping through a stack of spreadsheets, her face lighting up as she points to a line graph. "Look at this," she says, tapping the screen. "Six months ago, our customer repurchase rate was stuck at 22%. Now? It's 31%. That's a 40% jump—and we can trace almost all of it back to one thing: the portable planetarium dome we added to our lineup."

For years, Luminance Events had thrived on offering classic activities: inflatable bounce houses, interactive sport games, and outdoor movie nights with an inflatable projection screen. But by 2023, Sarah noticed a problem. "Customers loved our events, but they weren't coming back as often," she explains. "We'd host a birthday party with a bounce house, and the parents would say, 'That was great!'—but then they'd book a different company for the next kid's party. We realized we needed something unique, something that didn't just entertain but left a lasting impression."

Sarah and her team spent months researching new offerings. They considered adding a commercial inflatable slide (too similar to their existing bounce houses), a portable inflatable water park (seasonal and weather-dependent), and even an inflatable obstacle course (fun, but not "wow" enough). Then, at a trade show in Las Vegas, they stumbled upon it: a 15-foot-tall inflatable dome tent labeled "Starlit Explorer Portable Planetarium." "We walked into the demo, and it was like stepping into another world," Sarah recalls. "The lights dimmed, the dome inflated in 90 seconds, and suddenly we were surrounded by stars, galaxies, and even a virtual tour of the moon. Kids were gasping, adults were taking photos—everyone was completely captivated."

The planetarium wasn't just a "cool toy"—it solved a core problem for Luminance. "Our events are all about creating shared experiences," Sarah says. "A bounce house is fun, but it's individual—kids run around, and parents stand on the sidelines. The planetarium? It's communal. Families sit together, oohing and aahing at the same constellations. Parents tell us they'll never forget watching their 5-year-old point to Orion's Belt and say, 'I want to be an astronaut!' That's the kind of memory that makes people want to book us again."

Investing in the portable planetarium dome wasn't a small decision. At $8,500, it was pricier than their typical equipment, and Sarah worried about how to integrate it into existing events. "We asked ourselves: Would customers pay extra for this? Is it easy enough to set up? Can we use it year-round?" To answer these questions, they ran a pilot program in June 2023. They offered the planetarium as an add-on to 20 existing events (birthday parties, school field trips, and community festivals) for a $150 fee. The response was overwhelming: 18 of the 20 groups added it, and 15 of those booked another event within three months.

"The setup was surprisingly simple," says Mike, Luminance's operations manager, who was initially skeptical about the inflatable dome tent. "It comes with a portable blower that plugs into a standard outlet. Two people can have it inflated and ready to go in under 10 minutes. We were worried about weather—what if it rains?—but the dome is made of heavy-duty PVC, and we've used it in light rain and winds up to 15 mph with no issues. Indoors, it's even easier—we set it up in gyms, community centers, and even backyards with enough space."

The content inside the planetarium was another win. Luminance worked with the manufacturer to customize shows for different age groups: a 20-minute "Stars for Tots" program for preschoolers with songs and cartoon characters, a 30-minute "Deep Space Adventure" for elementary kids with facts about planets, and a 45-minute "Cosmic Wonders" show for teens and adults that includes black holes and nebulae. "We also let customers request themes," Sarah says. "One dad wanted a 'Star Wars'-themed show for his son's 7th birthday. We projected the Millennium Falcon flying through the galaxy—it was a hit."

To measure the impact of the portable planetarium, Luminance tracked customer behavior for six months before and after adding the dome (January–June 2023 vs. July–December 2023). They focused on three metrics: repurchase rate (the percentage of customers who booked a second event within 12 months), average revenue per event, and customer satisfaction scores (via post-event surveys). The results, compiled in the table below, were striking.

"The repurchase rate was the biggest surprise," Sarah says. "We thought the planetarium would attract new customers, but we didn't expect it to turn one-time clients into repeat buyers. Take the Smith family, for example. They booked a birthday party with the planetarium in July. In September, they called to book a 'mini event' for their daughter's soccer team—just the planetarium and some interactive sport games. Then in December, they booked our 'Holiday Star Show' for their neighborhood block party. That's three events in six months, and they've referred us to four other families."

The data also showed that customers who added the planetarium were more likely to book other add-ons. "Before, if someone booked a bounce house, they might add a popcorn machine," Mike explains. "Now, they'll book the planetarium, plus an inflatable projection screen for an outdoor movie after, or interactive sport games like giant Jenga or soccer darts. The planetarium acts as a 'gateway' to our other offerings."

For Sarah, the most rewarding part hasn't been the spreadsheets—it's the stories. "Last month, we hosted a planetarium show at a local elementary school for kids with autism," she says. "The teacher told us that many of these kids struggle with sensory overload, but in the dome, they were calm and engaged. One little boy who rarely spoke pointed to the moon and said, 'Bright.' His mom cried when she heard. That's the power of this thing—it's not just entertainment; it's a tool for connection."

Corporate clients have also embraced the planetarium. "We did a team-building event for a tech company last fall," Sarah says. "They wanted something 'unconventional,' so we set up the dome in their office parking lot after hours. We did a 'constellation trivia' show, then moved to outdoor games with their inflatable projection screen showing a live feed of the night sky. The CEO told us it was the most engaged their team had been in a team-building event in years—and they've already rebooked for this summer."

Of course, adding the portable planetarium hasn't been without hiccups. "The first time we used it outdoors, we forgot to stake it down properly, and a gust of wind lifted one side," Mike laughs. "No one was hurt, but we learned to always use the included sandbags and stakes, even on calm days. We also had to train our staff to be 'star guides'—they need to answer questions about constellations and keep the show running smoothly. Now, we have a 'Planetarium Captain' role for each event, and it's become one of our most requested staff positions."

Another lesson: Marketing the planetarium required a shift in strategy. "We used to focus on 'fun' and 'convenience' in our ads," Sarah says. "Now, we focus on 'memories.' Our tagline is 'Events that stick with you'—and the planetarium is the perfect example of that. We share short videos of kids' reactions on social media, and parents tag us in posts like, 'My child now wants a telescope for Christmas!' That organic content has been more powerful than any paid ad."

With the success of the portable planetarium, Sarah is already planning to expand. "We're looking into a larger dome—20 feet tall—so we can host bigger groups," she says. "We also want to add a 'daytime' version with a clear inflatable dome top, so we can do 'sun science' shows for schools. And we're partnering with a local observatory to offer 'dome + telescope' packages, where after the show, families can stargaze for real."

As for other activity companies considering a similar move, Sarah has one piece of advice: "Don't be afraid to invest in something that feels 'unconventional.' Our bounce houses and interactive sport games will always be part of what we do, but the planetarium has given us a unique selling point that makes customers choose us—and come back. In a world where everyone is competing for attention, being memorable is everything."

Back in her office, Sarah pulls up a photo on her phone: a group of kids and parents sitting inside the inflatable dome tent, their faces illuminated by the glow of projected stars. "This is why we do this," she says, smiling. "Numbers are great, but moments like this? That's the real repurchase rate."