Had some success with this about a year back. It takes a LOT more work than meeting a pro. A lot of flakes, a lot of people not seriously looking to take the plunge, a lot of people with unrealistic expectations. It could takes months of weeding through options to find one or two solid SBs (of course that depends on how demanding your criteria is though). Even when you think you've made it work, sometimes you can run into SBs that, after a few meetings, you realize are annoying, or have bad attitudes, or such. I had one I saw a few times at hotels and thought was cool, but then tried to break into my locked watch collection while I was taking a quick piss the first time I invited her to my place.
However, the few times you find someone and it works, it can be really amazing. You can potentially spend a lot less money for someone a lot more attractive and younger than most providers, for a regular recurring arrangement. It can be a lot more relaxed and fun, no clock watching, more casual, etc. If you guys really click, over the course of several meetups, you can really get to know each other and have some very "exciting" times together.
So if the chance of having that sort of arrangement outweighs all the work you have to do to get there, it might be worth it for you.