I never said the cost of stuff would multiply by ten.. I just said that getting 4k will be as easy as getting 400 gold currently. On my realm during the first tier of MoP, the epic boe world loots were selling for 40k. In the first tier of WoD, the epic were selling for 45k/50k on the same realm. And we all know how easier it was to make money in WoD.