It's just a case of whatever the market will bear. For the "privilege" of being in their presence (especially if they're attractive), they demand an outsized tip up front, provide a lame-assed massage (usually just moving hands around), barely crack a smile, cover everything, and often short you in the process. There are rare exceptions. But there's clearly a lot of guys out there for whom that's worth the premium price. AMP's, on the other hand, are (for the majority of cases) attentive, fair-to-excellent massagers, provide more services at reasonable prices, and at least appear to be grateful for the business. For me, there's no comparison in terms of ROI...