FFXI was a lot different, it was a game built in 2001. And it was modeled after the games that were popular at the time, mainly Everquest and Runescape. All those games had much slower paced combat. The system was essentially the same tank, healer, dps. But people could be creative with subjobs and use certain abilities of other jobs to fulfill more than one role. Summoner could use whm subjob and gain access to cures. Ninja could use warrior subjob to access provoke. And other combos as well. The biggest difference I would say is that there was no duty finder so there was a lot more encouragement to try different party compositions. Kind of like can we do this with no tanks? Will a bard help us here? Should we use black mage for sleep? ect.
Despite it's flaws people loved ffxi because it was a game that never got boring. People played it every day for years. FFXI could easily eat up your free time if you wanted, and there was no reason to play other games which was a huge money saver. People had to force themselves to log off instead of force themselves to log on like some of the newer MMOs.
There's only one other game that's done that for me personally, Starcraft 2.
