Khonkaen University Agricultural Fair

The annual Khonkaen University Agricultural Fair takes place from 20-29 January 2012. If it grows, they'll probably have it for sale. And generally the prices are much cheaper than anything in Udon, including the Tungsrimuang plant vendors. Wear a good pair of walking shoes, be prepared for crowds, or take a good book to read while your wife/gf does the shopping.