Pretty much every little thing about it.
Some of the games that are coming out for it are great lookin (any of the new final fantasy games, metal gear solid, etc), but I won't drop that much money for a mediocre system (mediocre on every point except power, and even that is questionable).
I'd rather rent one from a local game rental place for like 100$ for a week and beat all of MGS and play a bit of FF to see if I like it.