I loved my PSP, but the Vita just wasn't super interesting for me. Then again I used my PSP for mainly emulators, but I still had a pretty sizable library of PSP games.
I seriously thought about a Vita because it was pretty tight. But it was discontinued. That's a shame because integration between it and the PS4 was something I was interested in.
Good. That means they have a laser tight focus on actual console gaming and continuing to keep it awesome.