Reopening my suggestion at a higher range...

Not selling for 4.5 keys, low in demand

Unsold

http://www.tf2outpost.com/trade/10453488 wants 4 keys

http://www.tf2outpost.com/trade/10426878 wants 4 keys, has long-distance kills

http://www.tf2outpost.com/trade/10166194 wants 4 keys has an add, but retracted

http://www.tf2outpost.com/trade/10113747 wants 4.6 keys, has scouts killed

http://www.tf2outpost.com/trade/10398672 wants 4 keys

http://www.tf2outpost.com/trade/10504438 wants 4.25 keys

http://www.tf2outpost.com/trade/9925686 wants 4 keys

http://www.tf2outpost.com/trade/10459097 wants 4.55 keys

http://www.tf2outpost.com/trade/10350364 wants 4.55 keys

http://www.tf2outpost.com/trade/10345388 wants 4.55 keys

http://www.tf2outpost.com/trade/10463090 wants 4.75 keys, has 3 strange parts

http://www.tf2outpost.com/trade/10463465 wants 4.5 keys, has dominations

http://www.tf2outpost.com/trade/10490148 wants 4 keys

http://www.tf2outpost.com/trade/10431424 wants 3.8 keys

http://www.tf2outpost.com/trade/10425050 will accept any amount more than 2 keys

http://www.tf2outpost.com/trade/10202813 wants 4.4 keys, has airborne kills

http://www.tf2outpost.com/trade/10343906 accepting 4 keys or 19 ref

Buyers/Has Offers

http://www.tf2outpost.com/trade/10166194 wants 4 keys has an add,but retracted

http://www.tf2outpost.com/trade/7332977 buying for 3 keys, has an add

http://www.tf2outpost.com/trade/8918186 buying for 3 keys, has an add, rejected 2 4 keys offers

http://www.tf2outpost.com/trade/10493670 offered 4 keys, kept as c/o