Outdated price and I had the distinct pleasure of dealing with this rather difficult to trade hat(Simply because it doesn't bubble from your head, I personally found the location of the bubbles to be hilarious.)

Onto the proof!

http://www.tf2outpost.com/trade/9990524 - First and the most important trade to the new price:

He recently bought the executioner for a stormy storm charmers + 1 bud( And is the basis for the bottom end.) In the coming trades you will see his offer and as you can see from this trade he now owns it.

http://www.tf2outpost.com/trade/8394640 - Best and latest offer I could find is the previous trade who now owns the hat, which is again Stormy Storm Charmers + 1 bud( I hope I'm not off with the value of this for 3.2, I will explain why I didn't want to put any less than 3.2.)

http://www.tf2outpost.com/trade/8973688 - Again the best and latest offer is the Charmers + 1 bud

http://www.tf2outpost.com/trade/9975420 - Now I'm starting to feel I don't have enough proof for even the low end of 3.2.

Now after that depressing stroll down memory lane here is my personal history with this hat.

As you've seen it is quite a difficult hat to sell, and it could well be that my sale of 3.7 is a rare occurrence. Regardless here is my proof, http://i.imgur.com/xhxruWT.jpg?1 .

I bought the executioner for a steaming wraith wrap + 10 keys(1 T/S Bills and a key) which is arguably 3.2-3.3(~81 keys according to the current price of the wrap).

And I sold it along with 21 keys of items/keys for a Burning Flames Bonk Helm(~4.8), taking the keys out of the equation would make it arguably 3.5-3,9 so I rounded it off at a good 3.7 high end.

Will be happy to fix any mistakes I mightve made and be schooled if I made a big one!