Plenty unsold at 2 keys, and some are willing to sell below 2 keys. Proof below:

Selling for 1.5 keys:

http://www.tf2outpost.com/trade/10052408 (3 days)

Selling for 1 key 4 ref:

http://www.tf2outpost.com/trade/10137743 (new)

Selling for 2 keys:

http://www.tf2outpost.com/trade/10138429 (new)

http://www.tf2outpost.com/trade/10137305 (new)

http://www.tf2outpost.com/trade/10107324 (1 day, new)

http://www.tf2outpost.com/trade/10114032 (new)

http://www.tf2outpost.com/trade/10094659 (new)

Unsold at 2 keys:

http://www.tf2outpost.com/trade/10022520 (4 days, painted)

http://www.tf2outpost.com/trade/9794256 (1 week)

http://www.tf2outpost.com/trade/10085926 (2 days)

http://www.tf2outpost.com/trade/10095939 (2 days)

http://www.tf2outpost.com/trade/10008497 (5 days)

http://www.tf2outpost.com/trade/10093409 (2 days)

http://www.tf2outpost.com/trade/10043503 (3 days)

http://www.tf2outpost.com/trade/10055852 (3 days)

http://www.tf2outpost.com/trade/10088944 (2 days)

http://www.tf2outpost.com/trade/9948138 (1 week)

http://www.tf2outpost.com/trade/9868118 (1 week)

http://www.tf2outpost.com/trade/9991888 (5 days)

http://backpack.tf/classifieds/search/105/1/0 (4 unsold)

Sold at 2 keys:

http://www.tf2outpost.com/trade/10052401

Selling both the brigade and the bonnet for 3 keys together:

http://www.tf2outpost.com/trade/10126854