The examples you give are driven by competition forcing the suppliers to share their economies of scale. Those deals are available to everyone and the pricing i

The examples you give are driven by competition forcing the suppliers to share their economies of scale. Those deals are available to everyone and the pricing is also upfront. This Apple-Amazon situation on the other hand is a secret deal between two monopolistic powers, that's why it's coming up in hearings on anticompetitive behaviour. Such a deal is not available to everyone equally, it's not at all similar to Monoline / homedepot pricing.