Depends upon who the Provider is and where she is located. Most of the reliable verified local Providers charge $$ for an hour. On BP and elsewhere with lower quality, questionable Providers it can be a whole lot less for various reasons. However over the last couple of Months there seems to have been an increase in the higher end Touring Ladies passing through the area that charge $$$ - $$$$ for an hour. But that would be to off set their travel costs. But guys spending their available hobby bucks on them instead of the locals will cut into their business even if discounts are offered.
I started out charging the same that I do now, 150 hh AMD 200 hr. I started on BP and never had any problems with people not wanting to pay that really. Things started to slow down when more girls started posting for less, but I wouldn't want to see those guys anyways, the girls that they're seeing are bottom of the barrel type looking girls, with obvious PT issues. So I'm pretty content with where I am now. Thinking of upping it to 250 within the up and coming months, because I've been putting a lot more time and effort into advertising as well as upgradimg my services.
When one can see Frankie Fine for $160 an hour, you better bring a whole lot more to the table to justify much more. $160 is also the figure at which most agency girls will side job. Even Hot Little Heather has been running specials for as low as $140 an hour. Supply and demand 101.