Thank you Cashew for all these wonderful suggestions #CashtheDEW

KWatt Hat With No Name

https://marketplace.tf/items/tf2/631;5;u56

$40 on Mar 17 = 23 keys (https://backpack.tf/item/7957511624)

$48 on April 26 = 27 keys

$45 on May 11 = 24 keys

$49.95 on May 13 = 26 keys

https://backpack.tf/profiles/76561198095517744#!/compare/1585872000/1585958400

https://backpack.tf/profiles/76561198257296237#!/compare/1584748800/1585958400 16 keys + 15 ref

https://bot.tf/stats/listings/Y9Q6893X b/o 18

https://backpack.tf/profiles/76561198002757046#!/compare/1586304000/1586390400

https://backpack.tf/profiles/76561198062179088#!/compare/1586304000/1586390400 18 keys

https://bot.tf/stats/item?def=631&q=5&ef=Kill-a-Watt&craft=1&aus=0&ks=0 two sales at ~16

https://backpack.tf/profiles/76561198198155323#!/compare/1585526400/1585958400

https://backpack.tf/profiles/76561198305494036#!/compare/1585440000/1585526400

https://backpack.tf/profiles/76561198305494036#!/compare/1585699200/1585785600

https://backpack.tf/profiles/76561198198896481#!/compare/1585699200/1585785600

https://backpack.tf/profiles/76561198179707937#!/compare/1589155200/1589241600

https://backpack.tf/profiles/76561198871163068#!/compare/1589155200/1589241600 ~22 keys

https://backpack.tf/profiles/76561198138116474#!/compare/1586995200/1587168000

https://backpack.tf/profiles/76561198303886984#!/compare/1586995200/1587168000 smoking cotton head, use there

Sales are 16, 16, 16, 18, 22, 23, 24, 26, 27

7 buyers at 22+ right now. Cheapest seller is 27. Maybe a few weeks ago this would have been lower, but with current buyer's, it doesn't make sense to include 16 or 18

22 - 27