Seriously SE add an AH system!

[Elexia]

But realistically you can't expect people use those other cities, I for one have never checked them for items.

I do, it's the only reason I was able to find reasonably priced Materia, Melded gear, materials for vanya and certain potions. Hell I got my CNJ/LNC tier IV materia for 200k total in Gridania, so people use it but not everyone yet.

So as someone said the people with the "no one will use" mentality are the reason people still don't fully. I'd rather get things from Limsa and Grid than Uldah, because it's not only cheaper but outside of dungeon drops, the guilds for a lot of armor actually exist in Limsa and Gridania which is why I can find materials for certain things for cheaper.