You hit the nail on the head, just as fashion trends go by, so will this one. I recently saw a video of a guy who was interviewing people on the street and one of those people was a girl of about 18 years old and she was showing off her mp4 and saying that she really liked it and its "vintage" and "aesthetic" style, she also mentioned that she bought her some "old" headphones (meaning wired) to match her mp4.

bief57

ideasfromtheedge

Cell phone addiction

I have been saying for a few years that as society starts to realize how destructive smartphones have been to our minds, there will be a resurgence / renaissance of "single use devices" and even print media and paper.

A music player that just plays music, a camera that's just a camera, newsletters that are printed out and actually come to your house. 

I'm probably wrong and it's just wishful thinking, but watch for this stuff become "cool" at some point. It will be seen as way to differentiate yourself and be unique, that's when it may catch on.