Islands have 90 outdoor furnishing slots and large mansions only have 40. Think about that for a second. Not only is it more than double the quota of the largest housing option, everyone gets one instead of it being a privilege only a small handful of players enjoy.

If we ever get an equivalent indoor version, I would consider the XIV housing 'problem' solved. This is literally half the piece of that solution and islands are not getting anywhere near enough credit for that.

Of course, this assumes you value housing in this game as a creative outlet for decorating, which I hope people do. That is the primary and most important purpose of the housing system. Subs and gardens are just soulless gil factories, they're not as important.