Hello there,

• Let's start with the sellers

› B/O 2 key :

http://www.tf2outpost.com/trade/8300131

http://www.tf2outpost.com/trade/5476969

› C/O 2 key :

http://www.tf2outpost.com/trade/7872159

› Offer of 5 ref, according to seller's B/O, but after lurking the buyers and sellers BP, I think the trade wasn't finally done

http://www.tf2outpost.com/trade/7825522

› C/O 4.33 :

http://www.tf2outpost.com/trade/8113067

• That's for the sellers, let's see what the buyers are offering :

› "Automatic Buyout" 3.33 ref :

http://www.tf2outpost.com/trade/7670415

› Buyer offering 3.66 ( a direct improvement of it's current price ) :

http://www.tf2outpost.com/trade/8312289

› Buyer at 3 ref not getting offers :

http://www.tf2outpost.com/trade/8166199

• Finally, I had trouble getting mine for Key + ref, had to offer that to several sellers before getting one who agreed, that's what made me thought those needed a price update.

• The reason of this price rise may be because people are gathering them expecting those to be the next removed hats ( cf item timeline : http://wiki.teamfortress.com/wiki/Item_timeline )

• I also think all those vintage have raised, but as I didn't traded for some, I can't tell, might look at those tomorrow... 

Finally, I hope I did it right, as it's my first time submitting a price, and I'll gladly take any advice you could share about submitting new prices.

Anyway, have a nice day !