You've basically gathered correctly. If you have not lived in a different country, then it's probable that you do not have a good sense of how unusual America is. For example, you probably would feel like you were living in poverty if you didn't have a washer and drier or air conditioning. Almost no one in countries outside of the US have those. Even extremely relatively wealthy families. You basically are a 1%er with respect to the rest of the world. When I and other Europeans look at Apple's iPhone, we see Apple having the same attitude. Meanwhile, Samsung is opening stores in every shopping center, their ads cover entire buses and trains everywhere, and the general sentiment is that "Samsung gets us and is one of us." Meanwhile, Apple sits in its ivory tower talking about green power and celebrity employees, thinking the world want to buy $1,140 telephones from them.
If you go live in a different country, you will see that 99.x% of people almost exclusively purchase things that are necessities. Some of them may consider it a necessity to be able to Facebook on a telephone and view web pages and use 3rd party software application. Those people buy smartphones. Some of them here may still be spending twice as much for the Apple one because they have loyalty from iPods and iMacs that had been accessible and lovable from back in the Steve Jobs days of yore. But those people will slowly forget about Apple and fall into the hands of Samsung, Huawei, etc. You can count on it. It's visible in the sales numbers already.