Absolutely. I was being reductivist. The point I was attempting to make was that, whereas potato chip scaling must, at some point, involve quality control very close to the per-chip level, quality control at the foundry level can be applied to a batch which scales to whatever size you can pay for. Iron is iron, and that iron is largely similar to any other iron. It's the same reason why chemicals which can be processed in a vat can be made much cheaper by just... Getting a bigger vat to synthesise more at once, while produce is a finicky business, because each item is not only individual, but unique, and thus must be handled at the individual level at some point in the process, even if it's just a computer vision algorithm sorting which potatoes have already gone bad. Is that an inaccurate assessment?
A sort of "juice is cheaper than the oranges you use to make it" deal.
Of course, I also left out the price-fixing cabal which artificially inflates the prices of potatoes grown in the US.