1) Go to the gold bars vendor make sure you have 200k gold to buy a bar
2) Use this macro
/script local function buy (n,q) for i=1, 100 do if n==GetMerchantItemInfo(i) then BuyMerchantItem(i,q) end end end buy ("200000G", 250)
3)Now you have 250 gold bars for the prices of one
You can change the 200000G to other stuff like the emblems that allows you to upgrade gear