Why do that when they can make more money selling them seperately. It's not like game soundtracks tend to come out here that much to begin with. Maybe if the general public showed more interest it would happen, but at the same time, do you want to spend more money to get a game with it's soundtrack when the soundtrack may be utter crap? If every game charged more and came with a soundtrack, it would probably cost me more than buying the ones I actually want seperately given how many games I buy.