Actually, it's Jeff Bezos's talking point from the Kindle launch. He was basically saying, Amazon only benefits when people use their devices, so Amazon doesn't

Actually, it's Jeff Bezos's talking point from the Kindle launch. He was basically saying, Amazon only benefits when people use their devices, so Amazon doesn't care about margins on hardware. This was a dig at Apple, for whom, once the device is sold, the majority of revenue is made (App Store doesn't really contribute hugely)