I didn't think I would see a Kill-a-Watt item take a plunge like this...

Current Sellers

http://www.tf2outpost.com/trade/23186813 - 2 Buds

http://www.tf2outpost.com/trade/18160378 - Offers

Sales

Proof throughout all sales: http://www.tf2outpost.com/item/440,2996628500,30139,5

****Since this is the only traceable item.

Sale #1

(No inital trade advertisement is possible. Assumed on a trade server.)

Proof: http://backpack.tf/item/1790116423

1 Bud * 0.9 = 0.9 Buds

Sale #2

http://www.tf2outpost.com/trade/22199273 - Sold for 1 Bud

Proof: http://backpack.tf/item/94657784

http://backpack.tf/profiles/76561198075055145?time=1409814000

Conclusion

I hate for anyone owning this hat, because it looks like there isn't any demand for this hat at all.