You don't need 90k to have a successful fitness business - you need clients!
My son operates fitness bootcamps and he put in less than 5k to get started. Bootcamps are the secret because you can charge less per person but coach more people at once = therefore you make more per hour.
Bootcamps are easy to market ( www.increasegymmembership.com ) and people love them because it is a group activity. They talk, they challenge each other, they push each other, etc. If you have the right personality you can be very successful running bootcamps. Start up by running Sat morning bootcamps in the park, hook up with a local business with a large open space you can rent inexpensively, or lease a small section of a big wharehouse type building. Low overhead!
Sell health products in addition to running the bootcamps - especially weight loss and energy drinks - you can contact me directly if you want to talk with my son and get going on the right money making track.
Just my opinon,
Ready to help - Coach Glenn