Very few buyers, very few sellers. This is 100% of the trades I could find anywhere.

http://bazaar.tf/trade/366055

2 weeks old, unsold for 2.66

http://www.tf2outpost.com/trade/12485631

1 month old, looking for offers, no offers.

http://www.tf2outpost.com/trade/10232505

4 months old, looking for offers, only 1 offer of 2 Ref.

Author states in main post that he'll only sell for price "TOO GOOD TO BE TRUE"

http://www.tf2outpost.com/trade/13255090

Sold for 2.33 Ref

Hopefully this will specify the range more. Not that there's too much activity with this thing anyways. Anyhow, 2.66 doesn't seem too valid anymore, but people seem to be willing to pay around 2-2.33

Stay classy.