Credits Shuffle Spy and Risky

250 keys, spelled:

https://gyazo.com/3fcd8da2fbc13270e96d0a0e612461b1

https://gyazo.com/17c588efa1bb88ec402cbcded42e6de2

https://gyazo.com/24c42144b967c5cc3db6a83b173eb069

https://gyazo.com/315ca7ae9e82861c1587a1baee927826

Shuffle Spy:

https://backpack.tf/profiles/76561198126887938#!/compare/1640390400/1640476800 - Bulk sale

https://backpack.tf/profiles/76561198085861958#!/compare/1644019200/1644192000 - 200 Keys

https://backpack.tf/profiles/76561198002757046#!/compare/1639526400/1639612800 - 175 Keys

https://backpack.tf/profiles/76561198049921198#!/compare/1648598400/1648684800 - Bulk sale

Given the 175 sale and both 200 sales (I didn't link chessborger's sale since not all 200 Keys can be seen in the compare links) were all for non-spelled Whoopee Caps, the spelled sale at 250 will be too high to use here. While 175 is now outdated, it was usable when you made this suggestion. Us taking a while to handle this suggestion won't invalidate that sale.

chessborger:

I spent 150 on the whoopee cap, not 200. You can confirm with red chicken. https://steamcommunity.com/id/The_Red_Chicken

Also here is attempted proof, (hard to fit 150 in but you can see the end of the keys) https://gyazo.com/28c611ffd64b7b82675b10057c6a02f1

https://gyazo.com/b5294015c7308dafe6eafd2b3379b05a

New sales:

https://backpack.tf/profiles/76561198273331466#!/compare/1657324800/1657411200

https://backpack.tf/profiles/76561198078164667#!/compare/1657324800/1657411200

https://i.postimg.cc/wjfkNT0P/BP-Tf-sale.png (Credits VSB)

https://gladiator.tf/time-machine?item=Cloudy%20Moon%20Whoopee%20Cap&at=2022-07-10T21:49:26.000Z

Sale was the Scorching Mohawk (Sold for 215 keys here https://backpack.tf/profiles/76561198044009570#!/compare/1657411200/1657497600) + 33 keys as you mentioned, 215 + 33 = 248 keys, can be rounded up to 250.

https://backpack.tf/profiles/76561198201107787#!/compare/1656115200/1657238400

https://backpack.tf/profiles/76561198273331466#!/compare/1657152000/1657238400

https://gladiator.tf/time-machine?item=Cloudy%20Moon%20Whoopee%20Cap&at=2022-06-25T17:49:20.000Z

155 keys + Strange Circling Heart Bazaar Bauble (11 keys https://backpack.tf/profiles/76561198169907350#!/compare/1656979200/1657065600) = 166 keys

https://backpack.tf/profiles/76561198078164667#!/compare/1657929600/1658016000

https://backpack.tf/profiles/76561198322957656#!/compare/1657843200/1658016000

https://gladiator.tf/time-machine?item=Cloudy%20Moon%20Whoopee%20Cap&at=2022-07-17T11:31:58.000Z

Potentially Blizzardy Storm Tipped Lid + Isotope Psychedelic Slugger Revolver (Well-Worn), not sure

chessborger's supposed 150 sale can't be discerned from the screenshots they provided, so idk.

https://backpack.tf/item/1198892507

Gambling

https://backpack.tf/profiles/76561198322957656#!/compare/1658880000/1658966400

https://backpack.tf/profiles/76561197965177128#!/compare/1658880000/1658966400

https://gladiator.tf/time-machine?item=Cloudy%20Moon%20Whoopee%20Cap&at=2022-07-28T05:34:27.000Z

Looks like 108 keys + Head of Steam Chill Chullo (93 keys https://scrap.tf/auctions/FNPJUJ) = 201 keys

https://backpack.tf/profiles/76561197965177128#!/compare/1659139200/1659225600

https://backpack.tf/profiles/76561198049121113#!/compare/1659225600/1659312000

https://gladiator.tf/time-machine?item=Cloudy%20Moon%20Whoopee%20Cap&at=2022-07-31T08:09:48.000Z

145 keys + Green Energy Beanie The All-Gnawing (~37 https://gladiator.tf/sales?item=Green%20Energy%20Beanie%20The%20All-Gnawing&at=2022-08-30T10:29:59.637Z) + Ominous Stare Spooky Head-Bouncers

(~26-34, ~30 https://gladiator.tf/sales?item=Ominous%20Stare%20Spooky%20Head-Bouncers&at=2022-08-30T10:30:42.101Z) + Kill-a-Watt Twisted Topper (~20 https://backpack.tf/item/11282773499 https://gladiator.tf/time-machine?item=Kill-a-Watt%20Twisted%20Topper&at=2022-08-27T06:26:17.000Z) + Glamorous Dazzle Taunt: Bad Pipes (20 https://backpack.tf/profiles/76561198171447086#!/compare/1655078400/1655164800) = 145 + 37 + 30 + 20 + 20 = 252 keys, ~250 keys

https://backpack.tf/profiles/76561198150783829#!/compare/1656892800/1657065600

https://backpack.tf/profiles/76561197998138853#!/compare/1656720000/1656979200

https://gladiator.tf/time-machine?item=Cloudy%20Moon%20Whoopee%20Cap&at=2022-07-04T10:38:47.000Z

Whoopee + Bubbling Archer's Sterling (~8) + 13 keys for Collector's Winter Wonderland Wrap (Looks like 303 keys https://backpack.tf/profiles/76561198150783829#!/compare/1657411200/1657843200)

303 - 13 - 8 = 282 keys

Sales:

150?

166

175

200

201

248

252

282

VSB: 166 was a quicksale. Bought it off the dude as he was looking to cash out or something.

luxury elite: world class: another sale https://gyazo.com/aa540e9f2044251468d0e18a779e8a32

https://backpack.tf/suggestion/63143bf29062e06fd00794b3 I used it there, it also supports the above range

Lemons:

I agree, maybe exclude 166 if it was indeed a quicksale. 175-250 seems fine here.