10 dicks Install is just another money ploy by Microsoft tbh. To install a decent number of games your going to need a reasonable HDD, most people have a 20GB which, on top of saves, isn't going to be enough. So your going to have to buy a larger HDD, and guess who the only thing compatible is made by? I don't even know how there going to update it as massively as that. I wouldn't put it past them if you had to buy and extra part. You may need to put each disc in individually though to prove you own it, as thats what Microsoft plan to do, and I can't see it being any different to games with multiple discs, so that really doesn't make a difference as you'd still need all the discs.