I totally disagree with the whole concept that you can make "long run investments" in this recreational activity we all par take in. Everything is transactional by this nature and there is too much turn over to justifying paying over market from a strategic stand point...
For starters...
We find a girl. We establish expectations and a price. We agree... we enjoy... we repeat... we re-calorate expectaions and a te-calobrated price... we enjoy... we repeat... It isn't like we collect interest when we tip $60 more than the market yields. Why? Because... chances are she moves and you are back to overpaying another similar girl. They have to look at it being transactional too because they see more guys in a given month than we ever will see girls in at least a year.
As for the MMS... You have to treat her for what she is... a traffic cop. The only way you can truly show her you are a "good customer" is if you show up and if you want to be a great customer, you slip her the extra $20 for the door. To her you are transactional too. As far as engaging in the level of TLC you get from the girls, you may feel empowered but to her... Too Much Information and in certain instances you are making her an accessory after the fact. Less is more and should a MMS have a run in with LE as one of her girls gets busted, the best thing she can do is to insulate the business and herself from any legal liability.
The moral if the story... the details of what we do here is worlds away from or personal life and how we conduct ourselves on the business side should bear little resembelce to how we condict ourselves in our own business and trade. It is all transactional as opposed to a long term business model.