This is two times now, I believe the Chinese Farmers in Tanaris have no idea what epics are worth.
I have went to the gadgetzan auction house and found epics VERY CHEAP, I believe they are using Auctioneer to set the prices and don't really notice it's setting the prices without searching for other items like it.
Bow Of Searing Arrows : I got it for 4g buyout
Gutripper : 3g 72 silver buyout
I turned around and went to the city Auction house and noticed neither one were on the AH and so I used the little exploit where I put it on for 50g higher than it's worth and make an alt and ask to buy it for 50g more than I put it on there so that someone go's and buys it

.
Worked twice in a row, sold Bow of searing arrows for 250g

and gutripper for 125g