Has nothing to do with old. So far no better input devices have been invented for productive work in front of a computer than a mouse and a keyboard. Simple as that. Also the larger screen real estate makes for more productive use.
Holy crap.. you said something I actually strongly, strongly agree with.
Maybe I'm just getting old and set in my ways, but I find myself the most productive on 'desktop metaphor' user interfaces when it comes to workstations. Regardless of the OS in question.

