Difficulty with this is that it assumes laptops, or requires laptops + desktops. While we're on the subject of choice, some folks are very particular about double monitors, specific keyboards, physical arrangement of all that stuff, etc. The switching back and forth between different rooms... either requires multiple machines or ignores some of the beefier setups some people want/need.

That said, I'm fine with one 16g laptop and I move around with it a lot, but I also know a lot of folks who could not be terribly productive on any laptop vs their current setup.