For me the "thicker margin" argument only holds if Apple were cash constrained or could get a better return elsewhere. Apple has a massive massive pile of cash

For me the "thicker margin" argument only holds if Apple were cash constrained or could get a better return elsewhere. Apple has a massive massive pile of cash sitting around (over $200 billion) and I'd be surprised if standard investments make a higher return than actually investing in their Desktop line. That's what confuses me about Apple's approach. Just because you make less margin in a line doesn't mean you shouldn't do it...