While I understand your point, I question your perception. In the cases of automotive metal, rubber, and fuel, they are outright purchases, which I belive you acknowledge with your "it's not exactly the same concept" statement. Thankfully, automotive parts and fuel pumps do not adjust their pricing on my physical appearance. The engagements of escorts are on the order of short-term rentals, which I would expect to maintain (or discount) their advertised rates. It saddens me that you perceive those who escort as compromising their souls.