Tons of people willing to pay 4 ref, and more in some cases. I'm sure its possible to buy it under 4 ref, but this removal of the range is due to the majority of trades happening at 4 ref.

SOLD/WILLING BUYERS:

http://www.tf2outpost.com/trade/9522562 5 ref

http://www.tf2outpost.com/trade/9356058 1 key

http://www.tf2outpost.com/trade/9396996 4 ref, offer of 1 key

http://www.tf2outpost.com/trade/9509108 4 ref

OFFERS:

http://www.tf2outpost.com/trade/9039455 1 key, another of Tossle + Digits

http://www.tf2outpost.com/trade/5461144 El Jefe

http://www.tf2outpost.com/trade/9448292 4.33, another of 4.11 and 4

http://www.tf2outpost.com/trade/9308060 4 ref

http://www.tf2outpost.com/trade/9525641 G.Machina

STILL NEW:

http://www.tf2outpost.com/trade/9526388 1 key + 1 ref

http://www.tf2outpost.com/trade/9482378 1 key + 1 ref

http://www.tf2outpost.com/trade/9559437 4 ref

http://www.tf2outpost.com/trade/9497358 4 ref