Depends the economy of your server. In Ragnaros EU, I bought mine two months ago via neutral AH from an Alliance buddy for 6k. Few days ago i found one in Horde AH for 19k but nobody was gonna spend so much for it. Last time i ve checked again ( the same seller) he had it in AH for 5k b.o. Basicaly i think its pure luck if you manage to get it at a descent price. Else prepare to pay an amount with 4 zeros :\