This seems incredibly high.

For contrast:

two barely outdated sales that are about half this:

strange scorching shades + duped gfetti lucha + prof aussie mini + sweets

https://backpack.tf/profiles/76561198324357861#!/compare/1517616000/1517702400

~110

Searing case + vivid dogger + 40

https://backpack.tf/profiles/76561198127328235#!/compare/1517788800/1517875200

Case sold here with ~50 in adds for a peace cone + ~8

https://backpack.tf/profiles/76561198127328235#!/compare/1518048000/1518134400

would be ~70, making the total case sale ~150 ish

That, accompanied by the fact that this seems to be a youtube stunt from what I've gathered, makes me confident that this sale as a whole is an outlier and that this is best left unupdated