Earlier quoted context omitted.
- they last forever . I still have sennheiser hd380 pro cans from 25 years ago that sound great. - cannot overstate lack of lag and simplicity. You plug in and it works, perfectly, every time, forever. - easily switch devices. I use my headphone on my phone, tablet, laptop, Synthesizer, Groovebox etc without a blink. And my phone never stops playing music and connects to our car my wife just started the way bluetooth…
It is worth pointing out that not all parts age equally well. The cushions especially are not that durable and should be considered consumables. Sennheiser provides replacements should you need them. The effect they have on the sound is much bigger than you might think.
Not anymore for my old 380 pro. Had to settle for aftermarket versions that feel a little softer but also sound a bit different.