Yes, games may stop working at some point, but that is still completely besides the point. With DD, you do not own the game to any degree whatsoever, you are simply renting it. When you purchase a game on disk format, you own the game, and have the right to sell this game to another user. I would look for some other hobbies if this is the case for the next generation, but I really really don't think they will go that way, as a lot of people still don't want that. Even once DD is more popular than buying a game in stores (if it ever gets to be), they still probably won't as the copies they sell in a store would still make them money.
Not to mention, if they do go all DD, there are a lottttttttt of ps3 games considered brilliant that I have yet to play...I current have MW2, Infamous, and LBP, and have put like an hour into Infamous and several hours into LBP, and lots into MW2.
Money can't buy happiness. Just video games, which make me happy.
