Price needs an update. No one is selling it for 22 keys.

Proof:

http://www.tf2outpost.com/trade/8422633 - Got Smoking Helmet without a home worth 1.1~1.4 buds

http://www.tf2outpost.com/trade/8416234 - Not sure if this can help my suggestion but the seller rejected 2 pure offers of 20 keys and 21 keys.

http://www.tf2outpost.com/trade/8151262- Got 22 keys offer but not takin, had 28 keys offer, rejected 25 keys + TS EA, 2 offers of 1 bud

In conclusion, seems like 22 keys a bit low, you can at least get 23 keys offer easily. Also it's possible @ 28 keys or a bud.