https://marketplace.tf/items/tf2/130;14;kt-3;festive

$30 / $1.81 = 16.57 keys

$30 / $2.11 = 14.22 keys

https://marketplace.tf/items/tf2/130;14;kt-3

$27.72 / $2.12 = 13.08 keys

https://mannco.store/item/28528

$30 / $1.92 = 15.63 keys

https://backpack.tf/item/6452184754

https://backpack.tf/item/6681295609

https://backpack.tf/item/2786707592

https://backpack.tf/profiles/76561198136702159#!/compare/1612483200/1612569600

https://backpack.tf/profiles/76561198303886984#!/compare/1612396800/1612483200

Bulk

https://backpack.tf/profiles/76561198050933284#!/compare/1608163200/1608249600

https://backpack.tf/profiles/76561198003935476#!/compare/1608163200/1608249600

https://steamcommunity.com/market/listings/440/Collector%27s%20Festivized%20Professional%20Killstreak%20Scottish%20Resistance

["Dec 18 2020 01: +0",20.59,"1"] = 9 keys

https://backpack.tf/profiles/76561198227991072#!/compare/1610668800/1610755200

https://backpack.tf/profiles/76561198939115587#!/compare/1610064000/1615420800

Bulk

https://steamcommunity.com/market/listings/440/Collector%27s%20Professional%20Killstreak%20Scottish%20Resistance

["Dec 25 2020 01: +0",29.57,"1"] = 13 keys

["Dec 31 2020 01: +0",31.31,"1"] = 13 keys

["Jan 05 2021 01: +0",24.525,"2"] = 10 keys

https://backpack.tf/profiles/76561199048089644#!/compare/1609027200/1609113600

https://backpack.tf/profiles/76561198188093413#!/compare/1608940800/1609027200

Untraceable

https://backpack.tf/profiles/76561198061108999#!/compare/1611360000/1611446400

https://backpack.tf/profiles/76561198820335875#!/compare/1611273600/1611446400

21 keys

https://backpack.tf/profiles/76561198820335875#!/compare/1611446400/1611532800

https://backpack.tf/profiles/76561198886850124#!/compare/1611446400/1611532800

Untraceable

https://backpack.tf/profiles/76561198168796155#!/compare/1612396800/1612483200

https://backpack.tf/profiles/76561198064658655#!/compare/1612396800/1612483200

11 keys and 14 refined

https://backpack.tf/profiles/76561199100906514#!/compare/1615334400/1615420800

https://backpack.tf/profiles/76561198079495608#!/compare/1615075200/1615420800

https://gyazo.com/9398f371c6770414acf0c88497554886

18 keys

Sales:

9

10

11

13

13

13

14

16

17

18

21

hm

i had mine at 18 for like a month so 21 is out

https://gyazo.com/e30d6161307cf98064f429ebe3ff69b2

only me buying at 9, everyone else at 8.5

https://steamcommunity.com/market/listings/440/Collector%27s%20Festivized%20Professional%20Killstreak%20Scottish%20Resistance

https://gyazo.com/665e224f6a3bd2d6686e46eb618d142d

scm buyers on pro ks festive to $16, which is like 6 keys

https://steamcommunity.com/market/listings/440/Collector%27s%20Professional%20Killstreak%20Scottish%20Resistance

https://gyazo.com/98a9cf8f113aefc36aa0a732f1519113

scm buyers on pro ks $21-$27, which is like 8-11 keys

maybe lets go with 13-18 keys?