Apple re-invest a ton into their business, both in R&D and manufacturing and supply chain. It's just that the amount they invest, even though in the billions, a

Apple re-invest a ton into their business, both in R&D and manufacturing and supply chain. It's just that the amount they invest, even though in the billions, are still too small when compare to their profit and cash reserve. They literally can't spend that much money, nobody can, Apple has enough cash reserve to fund NASA for the next 12 years for a literal moonshot project. Meanwhile Amazon's positive cash flow is less than one billion dollars per quarter and it's much easier to reinvest that much. Even if Apple fund the entire Google X, it won't register as much bigger than a blip on their cash reserve.