There was a nightline (I think) piece on a new dating site called establishedmen.com. The premise is basically sugar daddies for sugar babies. It talked at length about how this is almost prostitution. I had to laugh when reading the articles. "almost" is funny. I got a login and checked it out. Dallas is inundated with providers. I checked Austin out and there is at least one.
Makes me laugh that this is probably the most honest dating site I have seen.
One other thought is how many men would deny paying and then would be fine with this. Same with many ladies who would never sell it but will sign up. The lines are blurred and leads me again to the conclusion that everyone is in the hobby, they just haven't admitted it, don't realize it or enjoy it.