Could all of our houses fit in Eorzea? Don't think so. It would have to be an instanced area..even Ultima Online had instanced portal areas for their housing didn't they? Maybe just on my shard. Never payed to play.

But I would like to be able to build and customize my house. Decorate it with the heads of the dragons and wyrms which have fallen under my blade. I am all for instanced housing. Maybe be able to have a seperate instance for every Linkshell so you can see and walk around a town full of your Linskhells houses. It would require a lot of work though.