I agree with Bahamut2000. FFXI looks like the best looking and fun online game around. No online game looked that good before and offers that much detail with so many jobs.
FFXI will not be the end of offline final fantasies. Its just a online one. No one says you have to get a online final fantasy just because it has the name. Man, buy what you want and don't buy it if you hate before it comes out. It will save yourself the trouble.