I just came back to the game after a long absence, and was shocked to find everyone sitting on 250k-several Million gold due to Garrisons, the Shipyard and well... those seem like the main two culprits.
What happens when Legion comes out? Is the AH going to have everything at insane prices? Is someone going to get bored and just buy the whole AH out and relist everything just because? What are the only gold sinks left in game? Repairs, flight paths... Transmog, Void Storage, AH cut, Spec change, BMAH.
I'm just concerned Blizz may decide to vendor price things very high in hopes of removing Gold from the economy, all the while people who weren't here to advantage of this Raining gold from the sky period ends up being the real losers.