It is time for games to move to flash memory!

[DirtyP2002]

There are three reasons I would prefer flash memory over a disc.

1. It is silent. A spinning disc does make a sound.
2. (almost) No heat. A spinning disc creates some heat.
3. no scratches. I never had one USB stick or whatever that did not work no matter how often I used it. (Delete, write again and again)

And there are 256GB USB-Sticks available right now. Yeah they are expensive as hell, but in 2012 or 2013 when the next gen starts, they will be very cheap.