I agree with you completely. At some point the laptop became 'the default computer'. I went laptop-only for most of the span 2006 - 2011, before adopting a workstation (with dual 1440p monitors, a nice keyboard, a mouse, and my precious Linux) as my primary computing device again.

I couldn't go back for anything. I simply couldn't. I have a fairly light and portable laptop with a 13" screen that I carry around from time to time, and it's a vastly more constrained computing experience.

You will find that the vast majority of people doesn't care for faster machines. I think Microsoft's Continuum is the way to go. People will just connect their huge displays + mice/keyboards to their phones to avoid the trouble of syncing data.