Counter suggestion to the other one. http://backpack.tf/vote/id/528bc9eb4dd7b8f02f8b4568

[proof below]

Proof 1.

http://www.tf2outpost.com/trade/15680460

http://www.tf2outpost.com/trade/15716442

Sold for a N&B Jeep. + 3 pure keys.

Average value = 14 (got offered so no overpay applied) + 3 = 17 keys.

Proof 2.

http://www.tf2outpost.com/trade/14983655

http://www.tf2outpost.com/trade/15133653

Sold for a Smoking Coupe.

Average value = 13 keys x 0.9 = 12 keys.

Proof 3.

http://www.tf2outpost.com/trade/14831862

http://www.tf2outpost.com/trade/15814277

Sold for a Orbiting Fire Geezer.

Average value =18 keys x 0.9 = 16 keys.

Proof 4.

http://www.tf2outpost.com/trade/15591217

http://www.tf2outpost.com/item/440,2015550118

Bought for a BMOC = 13 keys.

So now the sales are 12,13,16, 17. which means I will set the range to 12-17 since there is no evidence 12/17 are outliers.

Feel free to add more proof and give feedback.