So well camouflaged, i've never even seen this hat

New price: 20-24 keys

Proof:

Sale #1 and #2 (2 months)= 20 keys

https://bot.tf/stats/item?def=30978&q=5&ef=Disco+Beat+Down&craft=1&aus=0&ks=0

Sold twice for 20. Bought twice for 16 keys.

Sale #3 and #4 (2 months)= 16 keys

https://bot.tf/stats/item?def=30978&q=5&ef=Disco+Beat+Down&craft=1&aus=0&ks=0

Bought twice for 16 keys.

Sale #5 (1 month)= invalid

https://backpack.tf/profiles/76561198040601138#!/compare/1526169600/1526342400

Bulk.

Sale #6 (1 month)= 15 keys

https://backpack.tf/profiles/76561198090947577#!/compare/1525737600/1525824000

Sold for 15 keys.

Sale #7 (1 month)= 24 keys

https://backpack.tf/profiles/76561198052264884#!/compare/1526083200/1526169600

Sold for 24 keys. Histories don't match. Looks like brokering. Still using, because all the keys ended up in the sellers inventory.

Sale #8 (3 weeks)= 13 keys

https://backpack.tf/profiles/76561198056380408#!/compare/1528070400/1528156800

Sold for 13 keys.

Sale #9 (2 weeks)= 21 keys

https://backpack.tf/profiles/76561198123224716#!/compare/1528934400/1529107200

Sold for a spec ks festivized australium sniper rifle (21). Ignoring festivized. Spec ks sellers are the same as non ks version, but non ks version has a more acurate seller / buyer relationship. Using non ks buyers.

Sale #10 (2 weeks)= 17 keys

seller: https://backpack.tf/profiles/76561198022370781#!/compare/1529193600/1529280000

buyer: https://backpack.tf/profiles/76561198055622215#!/compare/1529107200/1529280000

Sold with 2 keys 3.66 ref for a steaming rifleman (19) = 17 keys. Mini below.

Sale #11 (2 weeks)= 20 keys

https://backpack.tf/profiles/76561198074184778#!/compare/1529020800/1529107200

Sold for a vivid head hedge (20). Mini below.

Sale #12 (3 weeks)= 22 keys

seller: https://backpack.tf/profiles/76561198164036774#!/compare/1527984000/1528070400

buyer: https://backpack.tf/profiles/76561198078864424#!/compare/1527292800/1528070400

Sold for a steaming hat with no name (18) + 4 keys = 22. Mini below.

Sellers at 23-26, buyer at 16:

https://imgur.com/a/NXvMU68

_________________________________________________________

Minis

steaming rifleman:

https://backpack.tf/profiles/76561198022370781#!/compare/1529366400/1529539200

Sold for 19 keys 9.66 ref.

Going with 19.

vivid head hedge:

https://marketplace.tf/items/30978;5;u16

Sold for 38.99$. Keys were 1.94$. 38.99 / 1.94 = ~20 keys.

Going with 20.

steaming hat with no name:

https://bot.tf/stats/item?def=631&q=5&ef=Steaming&craft=1&aus=0&ks=0

Sold thrice for ~18 keys.

Going with 18.

_________________________________________________________

SUMMARY

Sales:

13

17

20 x3

21

22

24

16 and lower countered by buyer. 17 seems low + close to buyer. Excluding

Sellers at 23-25 are very young, therefore including 24.

Going with 20-24 keys.

Feel free to add proof to support or counter my new price.