I wonder what the relationship between chip size and other costs is. You’d think a tiny scale chip like a modern cpu is more expensive to produce than larger, less fine controllers like the kind used in basic electronics but with smaller sizes comes less raw materials, lower shipping costs and you can cram more functions on the one chip. Once you have set up the manufacturing process perhaps there is an economic reason for using the fancy stuff beyond just wanting to cram the worlds worst example of a computer into the car dashboard