Don't know why the other suggestion was accepted. 2 keys is what these are selling for, and is a much cleaner price.

Classifieds

http://backpack.tf/classifieds/search/522/1/0 - Several selling at 2 keys.

Sold/Selling for 2 keys

http://www.tf2outpost.com/trade/7470869 - Sold for 2 keys

http://www.tf2outpost.com/trade/7345031 - Sold for 2 keys

http://www.tf2outpost.com/trade/6822435 - Sold for 2 keys

http://www.tf2outpost.com/trade/7106827 - Sold for 2 keys

http://www.tf2outpost.com/trade/7280951 - Sold for 2 keys

http://www.tf2outpost.com/trade/7621707 - Selling for 2 keys

http://www.tf2outpost.com/trade/7614178 - Selling for 2 keys

Like I said, I can't work out why this isn't the current price. I realize that it's more of an aesthetic change than anything, but 2 keys makes so much more sense than 1.9 - 2.2, especially with the rapidly fluctuating price of keys.