If you are a staunch Halo 3 player (I know I still occasionally am), then you better think twice about installing your game to the Hard Drive. Eurogamer provided us with some performance data last week regarding playing H3′s campaign off of a Hard Drive install, so I know I was already leaning towards not installing Halo 3 once the NXE came out. Now Bungie has officially came out and confirmed all of our suspicions.
Well some games are meant to read from the Disk, other games like RPG like Fallout 3 would be better on the HDD because everything is loaded right then and there in sections.