I don't think Sony would regard it's gaming arm as a small part of itself. Isn't that why, at least in part, Sony is at the point where it is at the moment? It's still an immensly lucrative market, has been for ages, and proably will continue to be until just before the Sun swallows the Earth. And they want to be at the top of it, I'm sure. The feeling I get is that it's not really about who makes the most cash, although that is most assuredly a factor, but it's more like a great big contest to show who's king of the hill. Grab your popcorn, take your seats, for it's going to be settled in a cage match.