I can get over most of the modern crap, but I refuse to give up the 3.5mm port. Bluetooth headphones are too much of a downgrade, and adapter dongles are just something else to lose.
So I can use my pair of headphones for everything. They work in my phone, my DJ mixer, my computer, and the broadcast board at the radio station. They never have technical malfunctions, there is no interference, and never run out of power.
Bluetooth it's oh so perfect, it sounds like god playing the music himself and nothing ever takes too long to pair. I threw away my vinyl and CDs to listen to Spotify on low setting like the musicians intended
There are no flights over 30 hours long, so it's irrelevant. You also cannot listen to music non stop for so long and you can charge them while you sleep on your flight.
The four biggest advantages for a wired headphone when compared to Bluetooth are
Headphones are cheaper
No lag to receive audio
Headphones don't need to be charged
Easier to connect/disconnect.
This doesn't even touch the preference stuff, like some people prefer having a wire to avoid losing headphones, and others like wireless. Or quality, which is a can of worms I don't want to even touch.