Under no delusions at all
I do not gift with ANY sense that it may provide reward in terms of performance or costs. I do it for point d. in my post ie because it gives ME pleasure to provide a gift to a lady.
I do not "see" the working girls in this establishment in the normal UKP sense ie in bed, although I have done that in the past. I go there now because their company, yes company, is rewarding. We are all friends. As stated, one of the girls who now manages rather than works and is a very special friend.