Spells do add value if you can find sales for them.

https://backpack.tf/profiles/76561198157765574#!/compare/1632355200/1632441600 - Market Gardener sold for 4 Keys

https://backpack.tf/profiles/76561198146046621#!/compare/1631836800/1631923200 - Scattergun sold for 4 Keys + 30 Refined

https://backpack.tf/profiles/76561199080033728#!/compare/1634774400/1634860800 - Shotgun sold for 4 Keys

https://backpack.tf/classifieds?item=Pistol&quality=11&tradable=1&craftable=1&australium=-1&spell=Exorcism - The Pistol can't sell at 4 Keys

https://backpack.tf/profiles/76561199125733556#!/compare/1632787200/1632873600 - Revolver sold for 7 Keys

The Oblooterated is closer to 8 Keys, so Sale 1 is 203 + 8 + 30 = 241, so your values are somehow still fine.

https://backpack.tf/profiles/76561198164651434#!/compare/1634601600/1634688000 - Lugermorph sold for 60 Keys

https://backpack.tf/profiles/76561198120674183#!/compare/1634601600/1634688000 - Hundkopf sold for ~60 Keys

https://backpack.tf/profiles/76561198120674183#!/compare/1633824000/1634601600 - Last Breath sold for 15 Keys

https://backpack.tf/profiles/76561198007953976#!/compare/1637712000/1637798400 - Crone's Dome sold for ~55 Keys

The Buck Turner's have no sales however, so that's the only reason your purchase can be excluded.

Don't be lazy. Your spell item values in Sale 1 were wrong and miraculously came out to the same value when properly researched.