I have put a bit of time into FFXI and can say that as you get deeper in it either gets more fun or more addicting. I can't tell. It is the first MMORPG I have played. It is a fairly hardcore game that requires a LOT of time(25 days logged so far), but seeing your character progress seems worth it to me. If anyone on the forum is on the Midgardsormr server send me a tell. We can go do a Burning Circle Fight or just xp.
(ingame name is toranaga)