I am going to be extremely blunt: nothing unless you craft. It's more of a "make your own fun" type of experience, and after so many years I hardly leave town if it's not to gather resources or run a map. Occasionally I'll hop on a hunt train. I have completed every quest available, and don't have much reason else to do so.

FFXIV is not really a game you exist in, which is fine because it shines spectacularly in other areas.