Time for a raise I think :3

Selling for 3 keys:

http://www.tf2outpost.com/trade/26951920 (I know it says selling for 2 but I added the guy and he said he was now selling for 3 :/)

Selling for 3 keys and 7 ref:

http://www.tf2outpost.com/trade/26944273

Sold for 4 keys:

http://i.imgur.com/JPTI4sh.jpg

http://prntscr.com/8cpj8l

Selling for 4 keys:

http://www.tf2outpost.com/trade/26761693

http://www.tf2outpost.com/trade/26955576#latest

Selling for 5 keys:

http://www.tf2outpost.com/trade/26951262

Backpack.tf seems to support this price range as you can see that all sellers are above 3.94 keys and there are 2 buy orders for 3 keys

http://backpack.tf/stats/Unique/Gun%20Mettle%20Campaign%20Pass/Tradable/Non-Craftable

Any feed back is appreciated