Proof below. 10 month-old price.

Can only find one recent sale

Sales:

http://www.tf2outpost.com/trade/17588934

-sold for sbtwc belgian+20 keys=~5.3 buds

Current trades:

http://www.tf2outpost.com/trade/18742489

-wants 6 buds

http://www.tf2outpost.com/trade/18981371

-wants 6 buds

-notable offers:

c9 ck=lower than outdated price now

Even if there are other recent sales out there on hats I didn't find, b/os of 6 give little margin for this to be higher. 5.3 is probably ok as a flat price, to be updated for now.