5 pages on OP, can only find one sold at 2.66

Sellers

http://www.tf2outpost.com/trade/13570898 - 2 ref

http://www.tf2outpost.com/trade/13552062 - 2 ref

http://www.tf2outpost.com/trade/13560514 - sold @ 2 ref

http://www.tf2outpost.com/trade/13490940 - sold @ 2 ref

http://www.tf2outpost.com/trade/13563570 - sold 2 for 2 ref, selling one for 2 ref

http://www.tf2outpost.com/trade/13561366 - 2.22

http://www.tf2outpost.com/trade/13567741 - 2.33

http://www.tf2outpost.com/trade/13526368 - 2.33

http://www.tf2outpost.com/trade/13518130 - 2.33

http://www.tf2outpost.com/trade/13414539 - 2.33

http://tf2tp.com/trade.php?trade=9698721 - 2.33

http://www.tf2outpost.com/trade/13565659 - sold @ 2.33

http://www.tf2outpost.com/trade/13548604 - sold @ 2.33

http://www.tf2outpost.com/trade/13531458 - sold @ 2.33

http://www.tf2outpost.com/trade/13527368 - sold @ 2.33

http://www.tf2outpost.com/trade/13515908 - sold @ 2.33

1 in the Classifieds for 2.33:

http://i.imgur.com/gmTjXJm.png http://backpack.tf/classifieds/search/id/520012044bd7b86c3f000004

Unsolds

http://www.tf2outpost.com/trade/13559911 - 2.47

http://www.tf2outpost.com/trade/13165393 - 2.55

http://www.tf2outpost.com/trade/13568802 - 2.66

http://www.tf2outpost.com/trade/13566999 - 2.66

http://www.tf2outpost.com/trade/13541113 - 2.66

http://www.tf2outpost.com/trade/13562436 - 2.66

http://www.tf2outpost.com/trade/13436708 - 2.66

http://www.tf2outpost.com/trade/13555613 - 2.66

http://www.tf2outpost.com/trade/13567604 - 2.66

http://www.tf2outpost.com/trade/13560759 - 2.66

http://www.tf2outpost.com/trade/13471095 - 2.66

http://www.tf2outpost.com/trade/13516670 - 2.66

http://www.tf2outpost.com/trade/13477148 - 2.66

http://www.tf2outpost.com/trade/13240505 - 2.66

http://www.tf2outpost.com/trade/13550850 - bp.tf prices, not sure if lower/higher end, still not sold tho

Conclusion

Before you say 2 ref seems like a quicksell price, keep in mind that according to these links this thing is almost impossible to sell for 2.66 ref. This is hard to sell so it deserves a price drop.

I apologize for any invalid/duplicate links and I will remove them if I have the chance.