People see them as a selling point because a) no one wants to carry a DSLR on them at all times; and b) social media makes people want to take pictures 24/7

I, for one, know nothing of photography, don't have any pictures on social media, and still take all pictures at max size for the simple reason that I want to be able to zoom on my pc (with a vastly bigger resolution than a phone) without pixelation. I'd never spend iPhone moneys on a mobile phone, but I still try to get a good camera for my budget.

I'd argue refresh rate is meaningless for most users, though. I hardly notice the difference between my high refresh screen and my wife's standard 60.