So it seems this thing can sell pretty easily for 1.22, and it's possible to get 1.33 or a craft hat if you try.

http://www.tf2outpost.com/search/119268874 practically none on OP, but let's make the most of it!

http://www.tf2outpost.com/trade/10069286 Various offers of 1.22 ref and a craft hat, as well as a guy willing to buy for 1.22 saying that he got one already. Let's look further into that. He got it from here: http://www.tf2outpost.com/trade/11254317, a dude who sold it for 1.22.

http://www.tf2outpost.com/trade/11608528 Craft hat offer.

http://www.tf2outpost.com/trade/9265144 This one's a bit ancient, 2 months old, turns down offers of 1.22, 1 ref and a low-tier uncraft.

http://backpack.tf/classifieds/search/Uncraftable%20Dragonborn Selling for 1.22, only 6 hours old, let's wait and see.

The dragonborne helmet has a really tiny market, more based around turned down offers then actually buying and selling. Still, these offers lean around 1.22 to a craft hat, which is 1.33. If I find anything else I'll add it.

inb4 "Soma, this raises the item's value, downboat"