“Up-Scale, State-of-the-art” all Women’s Fitness Center, (opposed to a mixed gender facility, and PLEASE GIVE REASONS YOU PREFER A WOMEN’S ONLY FACILITY, OVER MIXED GENDER FACILITIES) complete with Smoothie Bar, Retail Sales of top Brand Women’s Fitness attire, Country Club Style Fashioned Locker Room, The best of the best exercise equipment, Personal Trainers, and the best line of Cardiovascular Equipment?
I used to belong to an all women’s fitness facility when I lived in Boston (1990s). However, although I enjoyed it very much, my reason for joining it was because it was convenient–right across the street from where I worked. So, you may get all different reasons for joining, but perhaps not just because it is all women. Hopefully you can do some market research in the area you are thinking of, and compile information on the demographics there.
Good luck to you in your venture!