Is there any released game that use 50gb other than MGS4 ? I think FFXIII will use that too. Agent, next GTA, FF Versus XIII, Resonance of Fate might use that too.
100GB might not useful right now but what about year 2012 or further. I dont think Sony will release another console that time. This gen almost reach its limit for graphic. You know the better graphic means more expensive to develop. I dont see any company other than large one like SE, Activision, EA, and ubisoft can afford that. Only things we need is longer games. So, X360 which only use DVD might left behind for having low disc space. Yes, it can use multiple disc but not suitablr for all games. Sandbox games like GTA might has problem (GTAIV use full capacity of DVD). I can see Microsoft released new console which use Blu Ray or other new disc. Sony might not has any problem as they already use the technology. I can see why Sony called PS3 is 10 year console. Even they need to make new console it could be just PS3.5. Sony might loss lot of money in beginning but end up getting lot of money.