Surely much of it is what the market will support? If punters are happy to pay for overpriced HE, then why wouldn't girls try their luck? I went to Elements in Baker Street a couple of years ago and after the £45/hr massage fee, this hot EE girl said £100 for B2B. My jaw hit the floor in my head. She must've thought I was a tourist. I politely declined saying "I only pay £50 in here, so maybe only massage today". Bit of silence for a while then we finally agreed on £60. I told her I'm only paying more since she's pretty LOL. Even at £105 all in, I thought it was pricey for what I got (B2B, touching, HE).
If punters don't challenge ridiculous pricing, then it won't change. To compound it, the good value operations will cotton on and raise their own prices. Then we'd be in the shit.