This may not apply to other countries but as an American, I am fully aware of the growing obesity problems of my country. However 360 is here to save the day with multi-disc games.
While PS3 owners grow fat and ugly due to playing their large compacity blu-ray games in one long sitting, Microsoft has a track record of Last Remnant, Infinite Undiscovery, Lost Odyssey, Blue Dragon, and many more games with more than 2 discs. Your games will be interrupted and you will be forced to move and hike your bodies over to your consoles in order to continue playing, while getting your necessary excercise.
Soon 360 will get a FFXIII which will have at least 3 discs... or even better, 13 discs as a special edition (puuuuuuuun!!!!!) Even Rage by id will have 3 discs. See everyone, the past is the FUTURE!!!
P.S. mods please dont ban me, there had to be some humor on this site