The Crash games are one of the main struggles I'm having with buying a ps3 or a vita. PS3 has more games, but the Vita has PSOne on the go, and will soon have Crash 1-3 and CTR.
Anyways, whats your favorite Crash game? Mine would be Crash 2
BakonKart 64 I think it just depends on what kind of games your into, I would love to have a vita but I would hate for a new game to come out for ps3 and not have my ps3.
I personally think Crash 2, 3 and CTR are still great games in their own right (not so much Crash 1... it has its moments, but it lacks the polish that eventually comes about in Crash 2). Also, the Crash games are some of the nicest looking games on the PS1, graphically, and I'm not talking about 'cartoony' graphics, I'm talking more about the actual polygons on screen and textures.
But yeah, I personally find Crash 3 and CTR great when played on the PSP, when out and about, on a train or bus, etc. They're well worth the purchase from PSN.