Okay, this is my first Unusual price vote... So...

Proofs:

There are people selling it for 33 Keys.

I got one tomorrow for 30 Keys! (Non-duped... Yes, this hat needs to go down).

And sold it + a duped Bill's and 1 key for a Purple Energy Pyro Beanie, this is around 31 keys for the unusual.

This one is selling for 35 Keys: http://www.tf2outpost.com/trade/28029564

My trade history: http://prntscr.com/aoyri4