I'd argue it's that attention to detail that has made Apple great - Apple doesn't settle for merely competent decision-making, and this is plainly visible in the end product.

I now work for a company that has some of the highest-rated and most perennially popular apps on the app store, and the focus on details is insane. We will go in and fix a tiny animation inconsistency that would last barely half a second on screen - but people perceive this polish, whether they are conscious of it or not, and it crosses that gap between merely functional and actually pleasurable to use.