The last suggestion on this was a whole two years ago for 12 buds, the only reason it's 27 right now is because it was on the USD system back then.

Sale 1: http://www.tf2outpost.com/trade/22993950

Before: http://backpack.tf/profiles/76561198035077222?time=1425369600

After: http://backpack.tf/profiles/76561198035077222?time=1425492559

Sold for a DaD Hazmatt, nuts and bolts Ten Gallon (1.8), and a Peace Sign Tossle (2.75) (Tipped Lid and Thirst Blood are from other trades if you look at the histories).

Hatmat Mini: This buy bought one for 130 keys: Before: http://backpack.tf/profiles/76561198118764737?time=1426402800

After: http://backpack.tf/profiles/76561198118764737?time=1426662000

Going to price this in buds since others are asking for buds on this item ( http://www.tf2outpost.com/trade/25266622 ) besides a guy quickselling for 80 keys.

Buds were 10 keys at the time of sale, so with some very easy math that makes the Hazmatten 13 buds.

(13+1.8+2.75) times .9=15.795, rounding to 16

Sale 2: http://www.tf2outpost.com/trade/25531190

Before: http://backpack.tf/profiles/76561198000174125?time=1427439600

After: http://backpack.tf/profiles/76561198000174125?time=1427680833

Sold for a Massed Flies Hiveminder (mini below for another horrible overpriced hat)

Hiveminder mini: Most recent tracacable sale was all the way back at the end of October. http://www.tf2outpost.com/trade/23343836

Considering it hasn't had a tracable sale since then, the trade description is pretty damn accurate: "Thank god this pile of fucking garbage sold xD i wouldnt swear this hat on my worst enemy, if you see this thing run like hell"

Was offered on a duped Burning Beak with adds: http://www.tf2outpost.com/trade/23251074

Before: http://backpack.tf/profiles/76561198081056514?time=1414387394

After: http://backpack.tf/profiles/76561198081056514?time=1414393200

So it got offered with 3 buds on a Duped Burning Beak. Duped? Ugh...mini time again.

Duped Beak Mini (well that was easy, just found what the Hiveminder guy resold it for!): http://www.tf2outpost.com/trade/23488029

10 pure and a Blizz TC. Blizz TC was 4.75 at time of sale. So 10 plus (4.75 times .9)= 14.3

That makes the Hiveminder 14.3-3= 11.3. 11.3 times .9= 10.17, rounding to 10

Ruling Sale 1 an outlier due to Brad Pitt's suggestion on my last suggestion for this hat.

With all the work this took I can see why no one bothered to drop this until now...but nothing feels as good as dropping a horribly overpriced hat by over half!

As usual, if there is anything wrong with this suggestion please tell me and I will try to fix it! Thanks in advance and have a nice day :)