Just curious about the hobbyist views on this subject.

Do you go to the Amps and other MP's , and do you ever think about if the girls are trafficked, and do you care?

There are lots of so-called "fast houses," especially in Queens, using trafficked girls. Clients are generally immigrant men and the rates are extremely low. It is a niche market that virtually none of the men here would use.
I have never set foot in a MP or fast house and never would.

Gotcha.  

I was referring more to the main midtown AMPS however, which are prominent here on TER.