RPGs can be a touchy subject for most people, so I can respect you opinion. Thought it was the crack, myself, but still.
FFXIII isn't exactly the only RPG out, though. Demon's Souls has to be the hardest, most evil, greatest RPG on the PS3 to date, not to mention it's a real looker. There's also your iconic games like God of War, Killzone, not to mention Kingdom Hearts - all of which are being re-released in high-definition as an answer to the sheer lack of backwards compatibility that consoles seem to have.
Great games, and they have great sequels.