Why can't you just accept that people are different, like different things and have different needs?
I just think it's unwise to throw $600+ on a piece of experimental tech which is cumbersome to use and makes you look like a "me too" teenager.
That, when more than half the people on Earth earn less than that in a year ...
But you can think deeper than "earn" and "afford". You don't have to, but it won't hurt if you started looking beyond the linguistic abstractions so conveniently given to us by the media and corporations.
Look up the documentary "Darwin's nightmare", watch it and then look up the Apple iWatch launch event with Christy Turlington and a video of her wearing the iWatch in Tanzania.