For anyone looking to pick up some premium True Dungeon Tokens in preparation for Gen Con, community members will often run auctions to fund a $8000 token purchase. This gives people a chance to purchase tokens not only at a discount over aftermarket prices found on TD store site and Ebay, but also pick up hard to find tokens that you would have to spend $8000 to acquire. One such auction is running as we speak over on the TD forums here: 

We will deliver them free at Gen Con for anyone who places a winning bid. Good luck!