Prosieben is listening to the European Community

[Coreldan]

It's no secret that in F2P type games your usual paying customer easily spends 2-3 times more money on the game than with the more "traditional" payment models like retail cost and/or subscription model.

That said, there will be a lot of free players too, but obviously the payment model is succesful, seeing that just about anything but the outright biggest names have moved to it.