I've never played the PSP version, but the 360 (and PS3) version has Medieval Madness, No Good Gofers and Tales of the Arabian Nights, which are all much newer machines then any of the other games. Which doesn't necessarily mean you will like them more (I certainly like the older games too), but they are a pretty different experience from the older games, and some will like them more. MM is a really fantastic game (and one you most likely can't afford to own in real-machine form - it goes for outrageous prices. I sure can't even imagine buying one), and NGG and TotAN are nothing to scoff at either. I'd really miss them if I got the PSP version (and had a PSP.) Then again, the PSP version is portable. So there you go.