They're made by the same company! It's the Xbox it's all manufactured by Microsoft!? Not sure where this conspiracy came from?
It is, but that doesn't stop Microsoft using cheaper materials in the products they're going to sell off cheaper on Black Friday. Sure, it still works the same but it might not have the same longevity. No real bother on the satisfaction side either as the customer thinks 'it is broken, but I did buy it for next to nothing'.
No conspiracy - why would it make any sense for companies to sell off their premium stock at huge discounts just because it's Black Friday? Much better to keep a nice profit margin.