One aspect to keep in mind. In those "earliest days" the target that was being cloned was the IBM PC, which Wikipedia [1] quotes as having an introductory pric

One aspect to keep in mind. In those "earliest days" the target that was being cloned was the IBM PC, which Wikipedia [1] quotes as having an introductory price of $4,455 in 2020 dollars. Wikipedia also quotes a price range of $4.00 to $70.00 [2] for various Pi model introductory prices (they don't quote as "2020 dollars"). There is much more room for profit available to someone who is cloning a $4,455 product than there is to someone cloning a $4 to $70 product. The comparative very low price of a Pi vs. an IBM PC from 1981 likely makes it not profitable to "clone" and so no one is attempting to clone the Pi's. [1] https://en.wikipedia.org/wiki/IBM_PC https://en.wikipedia.org/wiki/IBM_PC [2] https://en.wikipedia.org/wiki/Raspberry_Pi https://en.wikipedia.org/wiki/Raspberry_Pi