Overpriced hat (compared to the Terror-Watt effect which worth 15 keys)

My last price submission for this unusual was a bit too low so here is my new suggestion

Sale 1:

I traded this hat some hours ago for an orbiting planets razor cut

http://www.tf2outpost.com/trade/27173016

http://imgur.com/a/YKHML <--------- Here are the screenshots of my trade history

The orbiting planet razor cut cost 20 keys so 20*0.9= 18

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Sale 2:

http://www.tf2outpost.com/trade/26732966 <----------------- Sold for 20 keys pure

Seller's backpack before: http://backpack.tf/profiles/76561198039145299?time=1441782000

Seller's backpack after: http://backpack.tf/profiles/76561198039145299?time=1441868400

Buyer's backpack before: http://backpack.tf/profiles/76561198062021270?time=1441782000

Buyer's backpack after: http://backpack.tf/profiles/76561198062021270?time=1441868400

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Sale 3:

http://www.tf2outpost.com/trade/26896736 <-------------- Sold for 22 keys pure

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Sale 4:

http://www.tf2outpost.com/trade/27108057 <--------------------- Sold for a Blizzardy Storm Reggaelator ( ~22 keys )

http://backpack.tf/profiles/76561198058519435?time=1443423600 Seller's backpack before

http://backpack.tf/profiles/76561198058519435?time=1443596400 Seller's backpack after

22*0.9~20 keys

So my range is about 18-22 keys