I didn't read all the replies so this might have already been said.
I am currently single and will maybe see 4 providers in one year. I actually have a hobby fund, where I just save a certain amount of money a month, and when it gets to about $300, I pull out the list.
I fancy the curvy ladies; not that I don't find hard-bodies attractive, I just prefer the feel of a softer figure. For example,
Sovanna,
Plaything/Toi and
Malanie Summers (if pics are accurate as I've yet to see her in person) are recent examples of what I find physically attractive.
Having said that, even though I could afford $300 or more, it comes down to recent reviews -- if they all have solid reviews, I then go to services and then to price.
Obviously, the reviews and services will affect how I weigh the price differences; i.e., if Betty charges $50 more than Veronica, but she has better reviews or offers something that Veronica doesn't on her menu, then I wouldn't think twice about paying the extra $50.
It just so happens that the women I find most attractive -- of whom, have a solid track record and offer the services I look for -- seem to fall in that 200-300 range... mostly $250 or lower, if I'm being honest.
Having said that, considering your reviews and showcase, $300 for an hour of your company does not seem far fetched to me (especially since I like your look), but it probably does deter a decent amount of potential hobbyists.