I have to agree with eveyone here. I'd not be comfortable in an unstaffed gym.
I've belonged to both a "big box" gym and a smaller independently owned gym. I hated the big box for many reasons - too expensive for what I got out of it was my biggest beef. I also didn't like being at a gym where the women were only interested in which designer gym clothes you wear, wearing perfume and makeup while working out, and people talking on their cell phones while working out! The whole gym as pick up joint thing. Yuck!
I really liked the smaller independent. It was a gym for serious weight lifters so most of the clients were men. I actually liked that because I wanted to be around people who were serious about working out. They had very basic cardio equiptment and no group classes but that was fine with me as I don't like group classes. The lifting equiptment was great and all very well maintained. Again I think that's because the focus of the gym was training competition weight lifters. Having all those knowlegeable people around was great plus oooooh those guys are sooooooo fun to watch!
The down side to the independent was only
one shower in the women's locker room and the cleanliness was next to nothing! You couldn't have paid me to shower in that thing!
As far as price goes around here (Minneapolis) a mid-range single membership is about $45 plus taxes/fees so If you're not offering all the other amenities the big boxes offer: free towels, big clean locker rooms with free lockers, day care, on-site help (not personal training but help if you need it) available during all gym hours; I'm not sure people will pay the same fee. If your charge is in the $25/mo range with less amenities then that sounds fair.
All that being said (I know, too wordy! LOL) I think owning your own business is a GREAT idea. Just research like mad before you do anything. There have been a lot of small "Curves-like" franchises for both men and women that have tried and failed around our neighborhood over the past 5 years. I'm not sure why as we live in a fairly affluent part of the city. I guess it really depends on who you think your clientel will be. Who are they? Do they live near your location? Where do they work? Do they want you work out close to home or work? Can you piggy back on say a grocery store nearby? Is there another business near that will help draw them in, a Target maybe?
Good luck in making your decision.
Beth