If I buy a game, I want to own a game. So physical copies all the way. Digital is ok, but you always need to make a backup copy of your game if you don't want to lose everything if the servers go down (not to mention having to deal with all the DRM there's around nowadays). No matter how pretty they present cloud gaming, it's an even less appealing proposition than the old renting system. At least with those I don't depend on my internet connection to do anything.