I wasn't thrilled about the update being as soon as it was, but after mulling it over for a few days, I've decided to keep my 3 at least until late next year's model is released.
Biggest reason? I don't think I'll recognize the difference between the A5x and A6x chips -- I'm not into FPS's or car racing games, and the only thing that seems laggy to me these days with iPad 3/ iOS 6 is the app store on the iPad. I already have 64gb LTE. Don't know that I'll see a difference in the wifi being "2x faster" either.
I'm interested in the upcoming less power-hungry IGZO displays, and if they're able to fuse the screen the way they did for iPhone 5. I'll take thinner and lighter too. 🙂 Hopefully that'll get released next year, otherwise, I'm plenty happy with my iPad 3. It didn't get slower just because a new model came out.
My husband usually gets my "hand me down" gadget, but in this case, I told him if he wants to upgrade his iPad 2 to iPad 4, go for it, I wasn't going to swap out my iPad 3 and get a 4 this year. He's decided to keep his 2 as well and upgrade later next year.