This is why my 90++ old completely non-technical mother has been using Linux since the 90s. I set up a very customized fvwm environment with mutt (also customized) and emacs (same) and helped her learn it. The beauty is that nothing has changed at all in over 25 years!
It's incredible. Personal computing is well and truly dead for the "consumer."
They're not valuable because of any service they provide.
Even then, ask yourself: Why do so many people pay $800 for an iPhone instead of $200 for some Android?
They didn't become #1 by selling $99 developer accounts.
Because Apple has managed to make their mass produced commodity products be a status symbol.
I don't understand the comparison you're making, because both kinds of phone are available in a wide price range.
This and apps “redesigned” every few month, breaking the workflow they've struggled to learn (they usually needed to follow the hand-written note, they had taken when I showed them how to do).
They've used it a bit more than a year, with occasional breakage, and they now have stopped completely.