I know Gold stocks are actually low. Recently friend of mine was complaining about how hard it was to source 100k of gold from the usual external sites. They'd of course say they could supply the order but took around 3+ days to fullfill it and often complained about "low stocks" in various servers that have "high" population ratings.
I suspect they were loading these chars up and doing the daily transfers between servers (i'm told they typically pay the $25 transfer cost once they can load up a mule account (has BoE, Gold, etc - to transfer between realms)
So it could be a supply issue or both supply/demand? low demand = low supply or, high demand = low supply ..who can really tell, but maybe the introduction of "buy gametime" inside the game now has disrupted that economic flow.
Not to mention now with the Apexsis Crystal Dailies + World Bosses + 700+ gear you can pretty much trip over and accumulate it someone made the auction house less important, which negates gold in ways.