Meh.

Sale 1

http://backpack.tf/profiles/76561198059658153?time=1429967882 - Bought on SCM for 55$ (Range value: 20 - 22 keys)

Sale 2

http://www.tf2outpost.com/trade/25757695 - Sold for a Purple Confetti Thirst Blood (22*0.9 = 20 keys)

Mini for the Purple Confetti Thirst Blood

http://www.tf2outpost.com/trade/25762444 - Sold for 22 keys

Sale 3

http://www.tf2outpost.com/trade/25652088 - Sold for a Bubbling Exquisite Rack (33*0.9 = 30 keys) (Outlier)

Sale 4

http://www.tf2outpost.com/trade/25509648 - Sold for 15 keys (Outlier)

Sale 5

http://www.tf2outpost.com/trade/25493402 - QS for 17 keys

Sale 6

Before: http://backpack.tf/profiles/76561198104168501?time=1426636169

After: http://backpack.tf/profiles/76561198104168501?time=1426748400

- Sold for 22 keys

Sale 7

Before: http://backpack.tf/profiles/76561198119349110?time=1426921200

After: http://backpack.tf/profiles/76561198119349110?time=1427029922

- Sold for a Miami Nights Towering Pillar of Hats (28 keys). No overpay. (Outlier)

Sale 8

http://www.tf2outpost.com/trade/25251862 - Sold for 20 keys

Feel free to counter / support my proofs