Not to argue his point for him, (since I do not believe the command line has anything to do with it) but... There are plenty of people who wouldn't churn their own butter, even if it was easier, cheaper, and/or faster than buying it store-bought. I think your analogy is flawed; people really do expect alternate forms of controlling their o/s, be it mouse, voice, touchpad, or ddr dance pad. It's unwise to ignore those market forces.