Gold sinks aren’t a solution BTW.
Make edgemasters purchasable from vendors for a fixed price.
The only real solution is to make resources that require gold more available.
That isn’t really going to help though, because almost all gold farmed never leaves circulation. If you buy something on the AH, only a small percentage leaves the economy. Gold is farmed faster than the current gold sinks can remove it. By a huge margin. Adding more gold sinks would increase the amount of gold leaving the economy for good, thus reducing inflation.
I would be open to vendors who sell world drop epics/rares, but then, as the OP already stated, this just makes buying gold with real money more appealing.