> Another question is whether the undoubtedly much better screen is worth the >2x price tag
For me, yes! It's how interact with the machine for hours and hours each day. This is also why the keyboards over the last few years were such a travesty - they are the primary input method.
Another question is whether the undoubtedly much better screen is worth the >2x price tag. You can get a nice portable monitor and a very good stationary monitor for just the price difference.