Abyssea seems awfully unique to me. It might be the geographical twin of other areas but the game play is certainly different.
We are enjoying the game. I am kinda confused why anyone wants to get it free. Well no of course it would be cool if it were free but then it would stop getting new stuff. I kinda like to pay for what I get as well. They spend a lot of money getting the game to us and they deserve to be paid for it if we use it.