So my MacBook Air for instance (the 11 inch model, small enough to comfortably carry under my arm and use on the subway) doesn't really have a place to store headphones. And permanently wrapping headphones around my phone would get annoying quickly.
Again, these are nitpicks and there are ways I could adapt. But it would be inconvenient. I have a headphone jack, and it works.
> Have you checked Amazon lately?
I have not. The main problem really is switching between devices. And to a lesser extent, the Nintendo Switch's lack of Bluetooth audio support.