In the last couple months I've noticed that Gree has taken a much different approach to MW it seems that getting reasonably decent gold units is now a matter of doing LTQ's and beating the boss the handouts have increased massively.
I've been slow to consider this a good thing as I've been conditioned to the grind that optional pay games usually provide for players that intend on playing free. Free = Grind for years to get where a few dollars could get you today. I've always considered this fine as I have picked which games I will pay for and which are just silly.
There is some evidence that Gree has changed their tactic and are going to try to move to a different level of pay for play providing Fun vs providing a way out of the grind.
http://www.gamasutra.com/view/news/1...f_friction.php
There are a few documents like this on the net maybe they have changed their approach to making money?