[strike]I understand it that you can choose the server these days.[/strike] (Too slow.) The pricing is right, though. At some point it becomes almost absolutely necessary to buy a second character as a mule to hold all the equipment you end up using. More characters aren't exactly necessary as one character can switch between jobs freely, but if you want to play different races, you've not much of a choice.
As many have said, it depends how much time you want to spend playing the game. You can get through most of WoW playing infrequently. FFXI is demanding from the get-go. End game for both is about the same--hell.