This needs a raise.

Classified ads at time of posting:

http://backpack.tf/classifieds/?item=Backpack%20Expander&quality=6&tradable=1&craftable=1

1*7.44 refined

Buyer at 7.44 refined:

http://www.tf2outpost.com/trade/25043592 (1 month old)

Buyers at 7.55 refined:

http://www.tf2outpost.com/trade/25439611 (1 day old)

http://www.tf2outpost.com/trade/25429294 (2 days)

Buyers at 7.66 refined:

http://www.tf2outpost.com/trade/24464617 (4 months old)

http://www.tf2outpost.com/trade/25209576 (3 weeks old)

http://www.tf2outpost.com/trade/24165257 (3 months old)

http://www.tf2outpost.com/trade/24867850 (1 month old)

http://www.tf2outpost.com/trade/24277980 (2 months old)

http://www.tf2outpost.com/trade/25440814 (1 day old)

http://www.tf2outpost.com/trade/23772604 (4 months old)

http://www.tf2outpost.com/trade/25253952 (2 weeks old)

http://www.tf2outpost.com/trade/24890149 (1 month old)

http://www.tf2outpost.com/trade/25461153 (Young)

http://www.tf2outpost.com/trade/25122642 (1 month old)

http://www.tf2outpost.com/trade/24989041 (1 month old)

http://www.tf2outpost.com/trade/23939649 (3 months old)

http://www.tf2outpost.com/trade/22301711 (6 months old, poorly bumped)

Buyer at 7.77 refined:

http://www.tf2outpost.com/trade/23930266 (3 months old)

This is all I could find on Outpost that are valid