https://marketplace.tf/items/tf2/656;14;kt-3

https://backpack.tf/item/2611068351

https://manic.tf/keyprice/?at=2023-01-20&site=marketplace.tf&price=100

$100 / $2.00 = 50.00 keys

https://manic.tf/keyprice/?at=2023-01-28&site=marketplace.tf&price=100

$100 / $2.00 = 50.00 keys

https://manic.tf/keyprice/?at=2023-03-27&site=marketplace.tf&price=95

$95 / $2.08 = 45.67 keys

https://manic.tf/keyprice/?at=2023-04-01&site=marketplace.tf&price=100

$100 / $2.05 = 48.78 keys

https://marketplace.tf/items/tf2/656;14;kt-1

https://manic.tf/keyprice/?at=2023-01-18&site=marketplace.tf&price=71.99

$71.99 / $2.00 = 35.99 keys (barely outdated but supports a lower end to range)

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

Jan 26 2023, ~95 keys (high)

https://gladiator.tf/sales?item=Collector%27s%20Holiday%20Punch&at=2023-04-19T12:39:03.566Z

1 @ 36 keys 19.33 ref

https://backpack.tf/item/2314279938

https://backpack.tf/profiles/76561198042018400#!/compare/1675641600/1675814400

https://backpack.tf/profiles/76561199341674631#!/compare/1675728000/1675814400

Bulk

https://backpack.tf/profiles/76561199341674631#!/compare/1675814400/1675900800

https://backpack.tf/profiles/76561198845055453#!/compare/1674518400/1675900800

Bulk

https://backpack.tf/profiles/76561198845055453#!/compare/1675900800/1675987200

https://backpack.tf/profiles/76561198009471724#!/compare/1675900800/1675987200

Bulk for several Collector's

https://backpack.tf/profiles/76561198009471724#!/compare/1677542400/1677628800

https://backpack.tf/profiles/76561198187599807#!/compare/1677542400/1677715200

https://gladiator.tf/time-machine?item=Collector%27s%20Professional%20Killstreak%20Holiday%20Punch&at=2023-03-01T14:02:20.000Z

Sold alongside Collector's Jarate for Strange Killstreak Sweet Dreams Grenade Launcher (Factory New), bulky, buyout was 44 keys.

Sales:

36

46

49

50

50

95

https://gyazo.com/280199063d0aebcdcb29ac86e9237d9a

6 month unsold at 50 keys, current marketplace.tf seller at $99.99 rounds to ~48 keys.

Running with 36 - 46 keys for now.