For some tech 1 modules, I guess. But for a lot of BPOs the cost is not tiny let alone ‘very tiny’ at all to copy them. Relative to cost of the BPO it’s much cheaper, of course, but relative to the price the BPC sells at the copy fee can amount to a significant fraction of it. Not only is the cost not ‘tiny’ but it isn’t a particularly fast process either. At least not for those copies that are worth selling.