Except tanning salons (or hairstylists or dog walkers or plumbers) usually a) dont have cash to spend b) Dont see their problems as software related c) are in many cases hostile to software, due to geniune bad software
I remember some time ago when I used to hang out in bootstrapped.fm, every week a person would come in and say "Oh I built a software for salons/hairstylists/dog walkers" how I can sell it? 4 weeks later they had shutdown their business, and a new person would come in, rinse and repeat.