Given the everyday utility of a phone, a bad choice comes with significant economic costs of wasted time and frustration stemming from poor performance/reliability. If you don't already have a preference (eg based on trying the preferred device of a trusted friend) then it's entirely rational to spend some time researching your options, up to some significant portion of the cost you expected to save by picking an android over an iphone.
I'm into synthesizers and if you think people nerd out on phones you'll probably be horrified at the energy and passion spent debating the merits of machines that produce subtly different kinds of bleep bloop noises. I don't spend as much time on that any more, and have also simplified and slimmed down my synth choices to a smallish number of devices I really like, but I don't consider the prior time wasted; it was only through that extensive and intensive knowledge-gathering that I was able to make those aesthetically optimal choices for my own music-making pleasure. It's harder to be simple than it is to be complex. Simplicity is easy to imitate, but imitators aren't usually innovators.
I do agree with your larger point about the undesirability of a surfeit of economic choice. If all you wanted was a phone that worked and you could afford it, there's nothing wrong with just getting whatever is widely hailed as the best one out there. I know nothing about cars and care less, so if I have to get a car I'd probably just get a Honda Civic due to its reputation for low-maintenance reliability. But I understand why people who enjoy driving or have some other reason to care have strong preferences about different vehicles.
I served in the military years ago. Just one tour. I got out with good memories but also some ideas. For example, I have standardized on Levi's 501 jeans, button down shirts of the same brand, and desert boots. I wear this daily. I don't have to think about what I wear. All my clothes fit as I expect, all the time. This frees me up to think about what matters--my family and job.
I made a comment further down about freewill you might find interesting, as freewill is now going to cost those of us who care about it.
> I'm thinking of ditching my iPhone for a flip phone.
I still don't think I could do without a smartphone. I have practically all notifications muted, but you need apps for too many things (most notably: Lyft to stay responsible).
That reminds me of my college days back in 2011 when I decided to go for a flip phone instead of a smartphone. Most of my friends thought I was peculiar for my insisting I use one and to do this day I still have that same flip phone, but not in use; just as a memento... sort of.
At the time, I wasn't really thinking about how my attention was a valuable resource or that most smartphone apps were major distractions. I just simply didn't like how inundated with features smartphones were. I always thought my laptop as my primary place of "getting-work-done" and my gaming laptop for entertainment (i.e. helluva lot of StarCraft II) and to have a phone that competed with that, but far worse, never sat well with me.
Looking back, I'm glad I did that and wish I could continue with a phone that could only text/call.
edit: Formatting
If you are in any longstanding 100% iMessage group chats you will be silently excluded from them if you switch away from iPhone. Disabling iMessage will have no effect on those chats.
I think this problem is more complex than just the media. In general, people are spending their attention and free will on broad spectrum of useless junk. Media, especially Netflix ("what do I do with my free time?"), is definitely a major offender - my point is that it's not the only one.
The modern world has wound up being an attack on free will, malevolent or not. It's exponentially easier to make a choice from a menu of 5 items vs. a menu of 50. There seems to be a biological limit on our ability to choose and the modern world has far exceeded that.