Personally, I think it's still a bit too soon to upgrade. If you're hesitant, than simply wait. The PS4 isn't going anywhere. The longer you wait, the cheaper it will get, and the more games you'll have to play for it when you finally do get it. The PS3 is still a very strong system, so make use of it while you can. If the PS4 could play PS3 games, I might encourage you to get a PS4 anyway, but that's not the case, so go ahead and milk the PS3 like crazy until you're dead tired of it. It's a fantastic system!