Proof speaks for itself on this one.

Unsold for 1.5 keys

http://www.tf2outpost.com/trade/7868877 - Unsold for 1.5 keys

http://www.tf2outpost.com/trade/7807629 - Unsold for 1.5 keys

http://www.tf2outpost.com/trade/7835148 - Unsold for 1.5 keys

http://www.tf2outpost.com/trade/7741544 - Unsold for 1.5 keys

http://www.tf2outpost.com/trade/7498681 - Unsold for 1.5 keys

http://www.tf2outpost.com/trade/7850419 - Unsold for 1.5 keys

http://www.tf2outpost.com/trade/7728232 - Unsold for 1.5 keys

Sold/Selling for 1 key

http://www.tf2outpost.com/trade/7845519 - Selling for 1 key

http://www.tf2outpost.com/trade/7729047 - Selling for 1 key

http://www.tf2outpost.com/trade/7860664 - Selling for 1 key

http://www.tf2outpost.com/trade/7674018 - Selling for 1 key

http://www.tf2outpost.com/trade/7854774 - Selling for 1 key

http://www.tf2outpost.com/trade/7857720 - Selling for 1 key

http://www.tf2outpost.com/trade/7846429 - Selling for 1 key

http://www.tf2outpost.com/trade/7751002 - Sold for 1 key

http://www.tf2outpost.com/trade/7717440 - Sold for 1 key

http://www.tf2outpost.com/trade/7607177 - Sold for 1 key

http://www.tf2outpost.com/trade/7726255 - Sold for 1 key

http://www.tf2outpost.com/trade/7860581 - Sold for 1 key

Expect these to drop further.