If you go ahead with it, make sure you heavily investigate: 1) Will they actually use it? Will their customers use it? 2) Why they want it? Is it to add extra

If you go ahead with it, make sure you heavily investigate: 1) Will they actually use it? Will their customers use it? 2) Why they want it? Is it to add extra perceived value for marketing purposes or is it to save them money... that sort of thing. 3) What's the maximum theoretical market? What part of that market can you address if you execute perfectly (TAM, SAM, SOM...). I bet it's smaller than you think. 4) What's the sales cycle? What does it require of the gyms? The guys I'm talking about did a pretty thorough job and the founding team had good prior experience with gym chains - they took it a long way pretty quickly. But they weren't successful. I don't want to say that it's not possible, but it's certainly full of a lot of pitfalls that are worth spending the time to discover up front.