1 on Outpost, dug up some previous sales for proof. Re-submit because I suck. Just raising the low end a little.

http://www.tf2outpost.com/trade/10096732

Sold for Steaming YWN + Logo Cowl (3.1)

http://www.tf2outpost.com/trade/10169542

Sold for 3 pure, the purchaser hasn't yet put it up for trade.

http://www.tf2outpost.com/trade/10041804

Only one currently on Outpost. Offers:

Eerie Jeepcap (3.1)

Nuts Executioner (2.8)

In conclusion, this hat's definitely fetching more than 2.6 buds - even with overpay, unusual offers come out to 2.8ish, with the exception of the Executioner, which was rejected. Additionally, the sale for 3 pure fits nicely into the new range.