Purple thing

Sale 1:

https://backpack.tf/profiles/76561198059439540#!/compare/1543795200/1548892800

Unclear, can't find a trace of the Roboactive Defiant Spartan on the other side.

Sale 2:

https://backpack.tf/profiles/76561198104069164#!/compare/1546560000/1546646400 (other side is unclear/untraceable)

= 53 keys + Strange Australium Axtinguisher (5.43 keys) + 19 ref

~ 59 keys

Sale 3:

https://backpack.tf/profiles/76561198104069164#!/compare/1551052800/1551139200

https://backpack.tf/profiles/76561198823641017#!/compare/1551052800/1551139200

= Roboactive Defiant Spartan (X) + 15 keys - Disco Beat Down Dr's Dapper Topper (85 keys)

X = 70 keys

Summary: 59, 70

Conclusion: pricing at 70 keys, Sale 2 excluded due to being below buyers.