Not happy..."relieved"
Going to a hooker is sort of like going to the bathroom. You go because you will be "relieved" not "happy." Anybody that is "happy" after going to the bathroom is a bit mental.
So, we can agree with "relieved" yes?
In which case, when going potty...don't you look for a clean toilet? I do. I don't want to sit on some gas station, diarrhea stained can. I'd rather pay for lunch at some classy place and then use their freshly cleaned bathroom.
Same with sex.... Even if it just for "relief" I'd rather take the good girl out for some very nice dinner and get fairly fresh rather than spend (fill in a price, since I don't go to hookers and wouldn't know) for a cum sponge.