How am I supposed to address that? I have no idea who works on what and how SE's cost structure works, and neither do you. I will say that I don't think the separate cost of Abyssea was done to recoup the costs of development, or because different people worked on it, or anything like that. I think the separate cost is there because they realize there are plenty of suckers who will pay for anything new in this game regardless of the volume or quality of the content.