Well if they wanted mass appeal and 20 million players like WoW they shouldn't have made the system requirements so high. I think thats a big part of WoW's success, you can run it on your toaster it's not just down to the quality of the game.

FF will have a large audience but MMO's are very competitve and there are lots of them. I think XIV will me the marmite of the MMO world. You will either love it or hate it. It will always get mixed reviews.