Panzer Dragoon Saga. It's the best RPG I've ever played. Long enough to feel epic and tell a full story with complex characters, but short enough to never get tedious like almost all RPGs. I almost never replay RPGs, but I've replayed Panzer Dragoon several times. It's like rewatching a really good movie, you just keep noticing stuff you didn't see the first time through. The only other RPG series that comes close is Mass Effect.
Get a Saturn and play all the Panzer Dragoon games. I don't care if you mod the Saturn and pirate Panzer Dragoon Saga or pay the $300 to get a legit copy, but all gamers should play it at some point. It's too bad it's such a rare game.