Well, This seems to be a no brainier to me, but it in the games.
Face it, most Microsoft users, use it to play games. This is a week spot in Linux. If I could figure out how to do it, I would come up with a way to emulate windows from 98 to currant and customize it so that people could emulate any common version of direct X.
Then I would pass it around, saying look here a "Freebie" that will let you play your games, and i would try to get some of the game manufactures to put games in Linux