These are some of the greatest games of the last generation, and I have fond memories of each of them.  If you haven't played these in the past, but would enjoy a lighthearted adventure apart from the maturity and seriousness of the current generation, these games are perfect.  The Ratchet & Clank series is also a great option (fingers crossed for HD Remake), as I personally prefer the PS2 ones more than the PS3 ones, 2 & 3 being my favorites.  Anyways, the Jak Collection is also a good value, getting 3 full games at a value price, with 3 separate sets of trophies!  I only hope that at some point Jak X: Combat Racing gets remade, because I really liked that two but always experienced issues on my PS2 with freezing and memory corruption :(