You don't need to be rich to buy them, but you do have to care at least a little bit to spend $170 on headphones (or $250 for the Pro). I think they've continued to be a status symbol to some degree.
I could see a kid wanting AirPods because his cool friend has them. I don't think I'd see the same thing with Skullcandy, or Bose for that matter.
iPhones aren’t anymore either. You seen poor people with them all the time.