Odd choice for a headline, then.
As it happens, nobody that I know personally cares about turn-by-turn navigation at all. I probably use that capability twice a year just for shits and giggles. A marginally better turn-by-turn implementation would have no impact for me or anyone I know, but that's because there's nothing terribly complex about navigating around my region.
It also happens that the display resolution on the latest iPhone was a major selling point for me, as I end up doing a lot of reading on my phone for the simple fact that I read a lot and it's always with me when I have those random, spare minutes throughout the day where I have nothing else to do but kill time. I just want the internet in my pocket, and not to strain my eyes.
I suspect I'm not alone in my priorities. Did you really not suspect that there are people out there who are dissimilar from you?