The games Sony showed this E3 look extraordinary good. Without Uncharted 4, I'd really doubt that some of them didn't get a little extra push from PS4 Neo to show off.
The thing is, thanks to diminishing returns, I doubt that PS4 Neo games will look THAT much better, especially when the only benefit is a bump to solid 60fps. I mean, that's cool and all, but I doubt this will convince me to upgrade anytime soon. And I am also worried because this 60 fps bump is an "easy victory" compared to other graphics enhancement solutions, so a lot of devs might choose that route instead of investing resources in better overall graphics (like, better textures, models, LOV, etc).
That said, if the VR experience is significantly better, then this is what might convince me.