While I’m out/in transit, of course there’s nothing particularly terrible about Bluetooth.
When I’m at home, however - I produce music a lot more than I consume it.
I also mainly consume music at home on my record players anyway, which obviously I don’t use Bluetooth for.
As any audio producer will tell you; the latency introduced be even the newest Bluetooth standards makes producing music in a DAW a frustrating experience at best.
I love the ‘best of both worlds’ headphones with optional latency-free wired support. I can take them on the go and use Bluetooth on the bus, I can connect a wire at home; and produce in bliss.
I would absolutely love to create my own headphones from the ground up sometime, choosing my drivers and cushioning carefully, and ideally modelling/3D printing my custom design, based on taking measurements of the shape of my head and size of my ears. (I prefer over the head headphones as even the most comfortable buds tend to hurt my ears after a short while.)
Sounds like a fun summer project sometime. :)