Closely related: Bending heaven and earth to fit a bunch of functionality into 2048 bytes of code (the part costs 17 cents). A couple of weeks before shipping, hardware says &quot;The part with 4096 bytes turns out to be cheaper. Do you want to use it?&quot;<p>My little team of two told them no (we&#x27;d done all our testing on the older part, and God only knows what bugs we&#x27;d find in the newer one...)