Almost nobody trying for over 2 keys, and if they are they're unsuccessful.

2 key sellers:

http://www.tf2outpost.com/trade/10632130 Added to discuss 2 keys

http://www.tf2outpost.com/trade/10986640 Selling for 2 keys

http://www.tf2outpost.com/trade/10964494 Selling for 2 keys

http://www.tf2outpost.com/trade/10944365 Selling for 2 keys

http://www.tf2outpost.com/trade/11012857 Selling for 2 keys with Gold paint

http://bazaar.tf/trade/222372 Selling for 2 keys

http://bazaar.tf/trade/221402 Selling for 2 keys

Sellers above 2 keys but in current range:

http://backpack.tf/classifieds/search/719/1/0 Only one in classefieds, 2.11 unsold for 4 days

http://www.tf2outpost.com/trade/10922061 Unsold for 3 days

All other unpainted sellers

http://www.tf2outpost.com/trade/10326341 3 keys unsold obviously

http://www.tf2outpost.com/trade/10300943 ^^^^^^^^

http://www.tf2outpost.com/trade/10524002 ^^^^^^^^^

http://www.tf2outpost.com/trade/9832490 3 keys + .88 unsold obviously