I've bashed on about prices since I joined ukp.
In reality my budget is 120 on the hour. That's not just a financial budget but a budget on principal.
I have seen 140/150 on the hour lasses but the higher rate will be less beneficial for her business from my own point of view. For the higher ones....
I will enquire/require a 45 minute booking and a return or regular punt will be highly unlikely, just on principal.
Also, with the higher the price comes a much higher expectation from me. You may think that's not the right way to think with ymmv etc, but at 150 quid for an hour I want it all, if not you'll be reading about it on here under a grey or red header.
When I say it all, I mean it all... looks, likes, attitude, delivery, venue, parking and professionalism. Anything not at the tip top is a bad experience for me at that kind of money.
Having said all that clap trap.... if we pay it, they'll charge it.