The Vita had so much potential to be a great system (beautiful design, amazing graphics, and lots of cool features), but to see that Sony had stopped supporting it makes me angry. The last game to come out for it was "Tearaway", that was it. Every other game that comes out for the Vita is probably some stupid port of a PS3 game. What a waste.
It really is a tough choice to make but I would go for PS4 because I have been playing PS since I was a child