You said computers not phones. More power for less money is massively overwhelmingly driven by being able to fit more transistors in the same size wafer due to modern processes not integration as you suggest.

>And you seem to suggest that early smartphones were already as fast as an M1, because they were "systems on a chip"

I never suggested anything of the sort. My point is that smartphones have always been integrated and computers have usually been more discrete. You said the drop in price or increase in value for money has to do with integration. This doesn't appear to be correct because computers have been party to this without largely being integrated in the fashion you suggest.