Yea housing is the elephant in the room. Even with the changes from 2.1 prices where going to go down due to new gear from CT and increasing tome/materials acquisition. People spent insane amounts of gil on crafted stuff and merc carries because there was no other use for gil. The bubble has burst.

Shouldn't really make predictions, but I think the market will stay where it's at for quite some time. FC/personal housing is a somewhat distant goal, it will take time for the majority of purchases that will be made to actually be made. The length of time will allow more players to advance their battle/crafting/gathering classes and thus be less reliant on the Market Board for needed items. I see supply surpassing demand for quite some time, which isn't necessarily bad, just makes it a buyer's market vs seller's market.