This won't be the last time.
I've been hearing this discussion for years now. The same constant bullshit was on the other board years ago. The fact is, there is not one monger fits all. One mans floor is another mans ceiling. Some travel once a year or less, other many times a year and others live in Colombia for instance. Hello! There is no Monger Union jaja. You can't control what other guys do. Some girls will accept less others think they have gold and if one inexperienced guys pays stupid money they will try to hold out for that. I have seen it more than once where a girl working Vila Mimosa for 50 Reals and later that night she would work help and demand 300 reals.
The best you can do is to build up a private stable of girls that are open minded and fun. I have some that I have been seeing for 5 or 6 years some longer and others a few months. Just use your game, make the girl like you and don't be afraid to walk if she won't negotiate. "Women are like buses, another one comes along every 5 minutes!