I think this would in general drive you price down, especially due to this site where “if so and so got it for this price I want it for that to“ Kind of mentality would prevail
for me I enjoy tipping in all aspects of my life so I usually pay more then asked for if I like the girl anyways
I can tell you this as well, I really don’t like it when girls are like it’s this much for this and for that it’s an extra 20, takes some of the fun and spontaneity out of it. However, if I saw a girl and had a good time and tipped her then next time I felt there was some appreciation for that and the service was extra special then I can see the tip getting bigger. It’s all about how it’s presented right (I hate “bargaining” over sex)
so in conclusion I think you should charge what your worth, don’t lower it but if clients knew that paying more would get you more without feeling like we were being asked to super size it for a dollar, then you could achieve what you are suggesting, but this would only work with certain kinds of clients (most would just take advantage if they could!)