I think that Apple does it out of the goodness of their hearts. Or maybe as a public service. Or because they are a 501(c)(3) charitable organization.
Yeah! That's it! That's the ticket!
Lol, I get that you're cracking wise.. but, honestly for YEARS iTunes ran at "break-even". They were VERY transparent about why they would do that, btw. It was to create an ecosystem that worked seamlessly enough ONLY with their own branded hardware to lock in users and encourage them to continue using more and more Apple products and services (the halo effect..). It is only over the last few years that economy of scale has turned iTunes into a "for profit" venture.. & the very latest data I've seen still pegs it at about $2.2 billion per year, so just over $500 million per quarter.. scarcely significant in light of their near $44 billion in revenue last quarter, wouldn't you agree?