Only in America things like this can happen.

A whole industry bootstrapping itself to make semi-conductors doubling every 18 months, going from exotic, mission critical hardware to commodity; SpaceX is doing the same thing with flight hardware. Contrast that with previous generation engines (the RS-25 comes to mind) with a sticker price of 125 millions... per engine! [0] Meanwhile we're looking at ~60 millions per seat on this flight. Incredible.

https://spacenews.com/aerojet-rocketdyne-defends-sls-engine-...