I don’t know what you mean by “market realities”. If the market wanted convertible laptops it would be willing to pay more for them.
For me it’s because my workflow is keyboard driven and I fined touchscreens annoying.
On the laptops I’ve had I generally disable touchscreen because I have no use for it and it gets in the way.
I want a good screen, a decent keyboard and a good trackpad. That’s it.
> "I don’t know what you mean by 'market realities'."
The reality that a certain crowd, I count myself among them, has to/or might have to choose laptops because machines in their preferred form factor either a) implement too many inacceptable but technically entirely avoidable compromises, or b) don't exist at all. That market reality. Like, when you have to settle for a laptop.
I see the appeal in having a device that's "just a screen" for e.g. reading, but my preferred reading device size is smaller than my preferred laptop size. So I have two separate devices: my X230 and my Pixel C. IMO each one is suited to its own task and I use both of them equally often.