EVENT RESUGGESTION!

Team 3.

Sale 1: https://marketplace.tf/items/tf2/30671;5;u3016 - 22.99/1.8 = ~13

https://backpack.tf/item/5214054350

Sale 2: https://backpack.tf/profiles/76561198074029503#!/compare/1591833600/1593129600

https://backpack.tf/profiles/76561198105247760#!/compare/1591660800/1592438400

?

Rest of the mp.tf sales: https://marketplace.tf/items/tf2/30671;5;u3016

45/1.82 = ~25

21.46/1.99 = ~11

Additional by the King:

Recent sale at $30 (~15 keys) on marketplace (credits Shuffle Spy).

https://backpack.tf/item/5123121303 ----- probably this one

25 is an outlier, so 13-15 will be fine. Buyers were up to ~10.5 keys at the time of the low-end sale and are at ~12 now.

https://bot.tf/stats/listings/4P01RJ5E

Classies: https://i.imgur.com/pJAyIrs.png. 13-15.