If the realm is ever looking for a way to drain the economy of gold to combat inflation, throw up a vendor that sells exotic vanity items that otherwise would remain unavailable to players.
Specifically, I'm thinking of things like Tabard of Flame, Tabard of Frost, Blizzcon Murloc pets, Collector's Edition Panda pets, etc.
I'd be glad to throw down 1,000g to buy a panda.