From the article: "...it stems from the different business models of the big rivals. Google, Microsoft and Amazon are primarily software and services companies, though each makes some mobile hardware (Google through its Motorola subsidiary). But Apple, while famous for making good software, sells that software almost entirely through iconic and expensive hardware, from which it makes the vast majority of its money."

I think he covered that the different companies have different business models.

Shit - I missed that! Good catch - I only watched the video :/