I suppose it can be seen as controlling rampant greed (especially for Nvidia), but it feels like the consoles dealt the cards here. There would have needed to either be some revolutionary tech or an outright schism to make a business steer an otherwise smooth ship that way.
>As a gamedev I have a different perspective: Sony and Nintendo would be fools to give up backwards compatibility just for savings on chips.
I agree that both are probably playing it safe this time. But as a devil's advocate: both Sony and Nintendo are not strangers to ditching the previous gen if they don't want to compromise their next gen. At this point Nintendo is skewed towards ditching (SNES/N64/Gamecube/Switch vs. Wii/WiiU).
Sony tried and almost failed hard with the PS3 (kind of before with the whole SKU debacle, and then ditched after) but is otherwise usually consistent on BC. Well, that and the Vita. But I don't think anyone missed the UMD (it was still backwards compatible digitally, though).