No massive games? I am not in the gamer-scene, but as I heard, there has been a mass of online-multiplayer games, don't know the names, but I think this industry had made big steps the last years ...
The same reason every government prefers to have their own sort of money, to profit from it.
But do developers have any profit from the currency inside their game? I don't think so. With BTC they could.
As I thouught about it, my idea was, that you pay say 1$ for entrance, and you get 90 % of it in Satoshis - a lot of money to play. And you can transfere it to other games, little ones for smartphones, big ones for Wow, Starcraft, etc.
What do you think this will do to the BTC economy?