Yes, these ladies can charge whatever they want.
It's cool. Fine and dandy. Whatever.
That said, many women, VIRTUALLY ALL WOMEN, can't relate to hobby spending. Reason being, spending in the hobby is like empty calories. After the fact, the guy gets nothing to keep. If I pay too much for a car, I still have the car, even though I paid too much. It's mine. I get to drive away with it.
Paying for provider services, once you're done with the time spent with her, the money is completely gone. Empty calories.
The closest women come to paying for anything like this is, oh, maybe a spa treatment, or vacation. It's temporary, nothing you can take home and own (other than small leave-behinds, souvenirs, etc).
With THAT said, how many of you ladies bargain shop when you go to a spa, or vacation, or anything related to such...where you don't get to own something you just spent money on???