I'm a big Sony fan, but I'm waiting. Obviously it's a very sexy machine and the launch lineup is actually pretty good, maybe great even, with UMarvel vs. Capcom 3, Everybody's/Hot Shots Golf, and Unit 13 which between those 3 would probably hold me over for quite some time. Even without the games it would be worth it for me to download my digital PSP/PSOne Classics library, which I'm actually pretty fond of now, and just play that on the OLED while lounging with it to browse the web, use facebook/twitter/etc. But there's only one problem:
The memory cards. Like I already said, I have a huge library of digital PSP and PSOne titles I would want to put on the thing, not to mention the amount of music and videos any self-respecting user would put on it anyway. That's hardly enough room for Vita games, which I wouldn't want to buy physically.
And that card would cost me another $120.
So I can't justify spending $370 for the (3G-less) console itself when I already have incredible titles I haven't beaten yet on my DS and PSP. I think by the time I beat some of those games, the price comes down on the cards, maybe even the machine if it tanks (!) and the library broadens up a bit, that'll be the perfect time for me to go for it. I think the Vita looks amazing, there's just a lot of reasons to hold off, as Sony has complicated yet another launch, sadly.
One last thing I just wanted to say is maybe check out some more of Uncharted before you go for it. Honeslty it looks like those action shooters they tried on the PSP that just weren't that good. The problem was never really dual analog sticks. Peace Walker and the SOCOM games played fantastically. The problem was developers trying to pull off amazing graphics on the system, which they can, and subsequently sacrificing performance. Uncharted looks stunning and appears to run good, but some of the videos I looked at, the gameplay is not as smooth as the PS3 versions and that, honestly, is a huge deal breaker for me. I want developers of this Sony handheld to correct the mistakes of the last time around, to take a note from Call of Duty, and realize that you better make damn sure that game runs smooth as anything before you start worrying about having mindblowing graphics on a handheld.