I paid 34 keys for this hat and now it's worth 15, soon to be 14 with the way buds are going :(

Sale #1

http://www.tf2outpost.com/trade/25190984

Spec. Aussie Sticky w/ ~9.5 keys in parts + pro. s.f. ambassador

24 + 9 = 33 keys * 0.9 = 30 keys, b/o was 28

Sale #2

http://www.tf2outpost.com/trade/25326018

Sold to a quickbuyer for 16 keys (see http://www.tf2outpost.com/trade/19998137 )

Sale #3

http://backpack.tf/profiles/76561198048345198?time=1425628800 >

http://backpack.tf/profiles/76561198048345198?time=1425715200

26 keys pure

Mini for da sticky

http://www.tf2outpost.com/trade/25065902

2 buds pure, 24 keys at the time

Sticky: http://backpack.tf/item/2145648744

Bud: http://backpack.tf/item/119475167

Bud: http://backpack.tf/item/272454328

Mini for da amby

http://backpack.tf/classifieds/?item=Festive%20Ambassador&quality=11&killstreak_tier=3

http://steamcommunity.com/market/listings/440/Strange%20Professional%20Killstreak%20Festive%20Ambassador

~9 keys