Sounds like a great toy to get. Lots of fun. If things do not get any better with gaming and the vita I will probably go to the tablet world with all the other x gamers. And another one bites the dust.
If I can't bring it with me to play my PC games then why bother? I already have a laptop that plays all my Steam games on the road and I have a controller to hook up to it. I can hook up to my 3DTV with my laptop and surround sound headphones. So.... yeah, no real reason to get this for me. Especially if I have to buy a new video card to take advantage of it. I'm already running SLI EVGA 8800GT's, and I don't game in bed.
I don't see much reason to buy this thing if you already own other tech, unless it's just another status thing. JMHO.
If you think about it that is all any of these things like computers, tablets, phones, consoles, the vita, and this mechine is are adult toys.Whoever makes there toy do more and work the best sells more, gets more attention and wins over the rest. A lest that is all they are to regular people like us.