Carouser's Arouser

https://backpack.tf/item/2960186249

Sale 1) ?

https://backpack.tf/profiles/76561198894593832#!/compare/1559865600/1560124800

https://backpack.tf/profiles/76561198415625616#!/compare/1560038400/1560124800

Sale 2) ?

https://backpack.tf/profiles/76561198415625616#!/compare/1560038400/1560124800

Sale 3) Sold for 13 Keys

https://backpack.tf/profiles/76561198080179568#!/compare/1560556800/1560643200

https://backpack.tf/item/2664889702

Sale 4) Sold for 13 Keys + 5 Refined

https://backpack.tf/profiles/76561198267589362#!/compare/1561161600/1561248000

Rounds to 13 Keys

Sale 5) Sold for 12 Keys + 7 Refined

https://backpack.tf/profiles/76561198236100096#!/compare/1562284800/1562371200

Rounds to 12 Keys

Sale 6) Sold for 15 Keys

https://backpack.tf/profiles/76561198119634686#!/compare/1563235200/1563321600

Sale 7) ?

https://backpack.tf/profiles/76561198122002056#!/compare/1563321600/1563494400

https://backpack.tf/item/2547493208

Sale 8) Sold for 12 Keys + 2 Refined

https://backpack.tf/profiles/76561198329367143#!/compare/1560124800/1560556800

Rounds to 12 Keys

Sale 9) Sold for a Blizzardy Storm Bonk Helm + Pyro the Flamedeer (~1 Key)

https://backpack.tf/profiles/76561198349886701#!/compare/1560297600/1560384000

https://backpack.tf/profiles/76561198111754627#!/compare/1560297600/1560384000

https://imgur.com/a/ahfOQP5 - Capped by the Buyout of 13 Keys

https://backpack.tf/item/7039073274

Sale 10) ?

https://backpack.tf/profiles/76561198086178920#!/compare/1559692800/1559865600

https://backpack.tf/profiles/76561198060913305#!/compare/1559606400/1559692800

Sale 11) Sold for 12 Keys + 6 Refined

https://backpack.tf/profiles/76561198060913305#!/compare/1560038400/1560124800

https://backpack.tf/profiles/76561198349886701#!/compare/1560038400/1560124800 - 2 were purchased for the same price here

Rounds to 12 Keys

Sale 12) ?

https://backpack.tf/profiles/76561198349886701#!/compare/1560470400/1560556800

https://backpack.tf/item/3086464839

Sale 13) Sold for 13 Keys

https://backpack.tf/profiles/76561198442349647#!/compare/1560124800/1560211200

Sale 14) Bulk sale for a Burning Flames Titanium Tyrolean

https://backpack.tf/profiles/76561198886167680#!/compare/1560297600/1560470400

Sale 15) Sold for 15 Keys

https://backpack.tf/profiles/76561197994697258#!/compare/1560816000/1560902400

Sale 16) ?

https://backpack.tf/profiles/76561198056793885#!/compare/1563148800/1563235200

https://backpack.tf/profiles/76561198162120088#!/compare/1562976000/1563235200

All sales between Sale 15 and this one were gambles.

https://marketplace.tf/items/tf2/259;5;u62 - Sold for $31.68 when Keys were ~$1.81 each and $25.06 when Keys were ~$1.81 each

https://marketplace.tf/items/tf2/5021;6

31.68 / 1.81 = 17.5, which rounds to 18 Keys

25.06 / 1.81 = 13.85, which rounds to 14 Keys