Meh

Sale 1

http://www.tf2outpost.com/trade/25659132 - Sold for a Scorching Flames Madame Dixie + 1 key (30*0.9 + 1 = 28 keys) (Outlier)

Mini for the Scorching Flames Madame Dixie

http://backpack.tf/vote/id/55365fa2ba8d88ce3b8b4f77

Sale 2

http://www.tf2outpost.com/trade/25498262 - Sold for a Duped Sunbeams Vintage Merryweather (68*0.9 = 61 keys) (Outlier)

Mini for the Duped Sunbeams Vintage Merryweather

http://www.tf2outpost.com/trade/25551008 - Bought on SCM for 174.64$ (Range value: 62 - 73 keys)

Sale 3

http://www.tf2outpost.com/trade/24935546 - Sold for 4 buds (12*4 = 48 keys)

Sellers

http://www.tf2outpost.com/trade/25741431 - 50 keys

http://www.tf2outpost.com/trade/25727396 - Have offers to prove that 28 keys is outlier

Feel free to counter / support my proofs