Too much people wanting this at the current price, also a lot of people decline the current price of 1.5 keys. The hype is kinda good for this misc since it is an all-class hat. The price rise is due to the large amount of people offering the current price, but the sellers aren't accepting the price. Also, 2 months old price. Proof below.

People Selling / With Offers Of 1.5 Keys

http://www.tf2outpost.com/trade/9384238

http://www.tf2outpost.com/trade/9495998

http://www.tf2outpost.com/trade/9397760

http://www.tf2outpost.com/trade/9241347

http://www.tf2outpost.com/trade/8847486 - declined / ignored alot of offers of 1.5- 2 key offers.

http://www.tf2outpost.com/trade/9363265 - offer of 1.5 keys, but wants 2 keys instead

http://www.tf2outpost.com/trade/9120958 - offers of a dirty Last Breath (6-7 ref or 1.5 Keys), which was declined. and a lot of declined 1.5 keys offers.

http://www.tf2outpost.com/trade/9469998

http://www.tf2outpost.com/trade/9428834

http://www.tf2outpost.com/trade/9396411

http://www.tf2outpost.com/trade/9482999 - offer of laugh taunt (3.33 ref) + 2.33 ref = 5.66 or 1.38 Keys

http://www.tf2outpost.com/trade/8709432

http://www.tf2outpost.com/trade/9376029

Others

http://www.tf2outpost.com/trade/9521902 - 2 ref war pig with muskellmannbrumm paint, fron trunner, stockbroker, s. rocket = 7.66-8.33 or 1.95 Keys

http://www.tf2outpost.com/trade/8724882 - Sold For Merc's Pride Scarf (1.5-2 Keys)

http://www.tf2outpost.com/trade/9347227 - declined all-father (2 Keys) offer.

http://www.tf2outpost.com/trade/9193053 - offer of clean last breath (2 Keys) and a lot of people want to buy it for said price, which is 1 key and 2 ref

Happy Trading!