http://www.tf2outpost.com/trade/26201364 - 0.44, really new.

http://www.tf2outpost.com/trade/26127447 - 0.55, 1 week (2 weeks actually, it's his friend: http://www.tf2outpost.com/trade/26080079 )

http://www.tf2outpost.com/trade/26128522 - 0.55, 1 week.

http://www.tf2outpost.com/trade/26129742 - 0.55, 1 week.

Many Sellers on backpack.tf for 0.55: http://puu.sh/ipl41/03e77d8440.png

http://www.tf2outpost.com/trade/26108905 - No offers for a week.

http://www.tf2outpost.com/trade/26177902 - The only seller for 0.66 on Outpost, 3 days.

Most of the trades are still new but as you can see this item does not sell at 0.66 and people are willing to sell it for less.