One underestimated area of Apple's business is its service area, which includes subscriptions (and customer service and other fields with 9.5 bn USD revenue past quarter and 31% growth YoY). Roughly 30,000 apps sell subscriptions (incl. Apple Music and others) in their App Store, and Apple adds approximately 10 million subscribers each month - with staggering growth: 60% in the past year. Especially media companies, but also adjacent businesses (games, fitness apps, Headspace and such) seem to come to the conclusion that "direct to consumer" subscription is a more sustainable business than ads. Here's the thing: instead of "direct" to consumer, there's Apple in between, taking a toll for everyone who passes through. I am convinced these types of businesses will be more and more important in the coming years.