I loved my Vita. I used it almost as much as I used my Dreamcast. The games library is definitely there, and it really helped me move over to embracing the idea of a digital library. I'd buy a third iteration from Sony.
But yeah, probably won't happen. A little disappointed with how the rear touchpad was used, too. I always thought it would've been the perfect targeting system for shooters. I've made my peace with it though.