6 month old price. Not much success in the current range.

SELLERS:

http://www.tf2outpost.com/trade/9656477 "backpack.tf price" No success, still fairly new though

http://www.tf2outpost.com/trade/9646406 2.88, highest offer = 2.33

http://www.tf2outpost.com/trade/9639428 Backpack.tf price, highest offer = 2 ref

http://www.tf2outpost.com/trade/9643506 Selling for 2 ref

http://www.tf2outpost.com/trade/9562462 Highest offer = 2.33

http://www.tf2outpost.com/trade/9512781 Highest offer = 2.33

BUYERS

http://www.tf2outpost.com/trade/9600699 2.66

http://www.tf2outpost.com/trade/9421308 1 ref, nothing after 1 week

http://www.tf2outpost.com/trade/7901494 1.55, someone was interested, none in buyers BP though

http://www.tf2outpost.com/trade/9654472 2.33, got added

http://www.tf2outpost.com/trade/9214829 Genuine Professor's pineapple (2.33)

http://www.tf2outpost.com/trade/9582149 2.33, got added

http://www.tf2outpost.com/trade/9610218 2 ref, nothing

Summary: Most of the offers are at the 2-2.33 area, Only 1 buyer for 2.66 (which isn't enough), meaning the high end stays at 2.33.