Well.. had 200k going into the expansion.
And close to 100k in speculation mats, which ended up selling for maybe 150k (a bit disappointing).
And alchemy transmutes have made me 400k since the expansion started.

Have spent a fair bit, the PvP crafted set cost a lot for the Ferals.
As did alchemy in week one, on ten toons.
Bought nine 346 weapons, five (druids) were rather expansive.

Got epic flight and faster epic flying on all the teams I intend to play.

But all in all, had the gold and not much to buy with it.
And it is still coming in at 30-35k a week.