I think the trophy surely has to go to the return to prominence of "solid-state" as a signifier of trendiness. When I was a kid, any piece of consumer electronics with anything even resembling a semiconductor in it had these magic marketing words stamped on it. If the quadrophonic eight-track stereo in your boogie van didn't have them somewhere on the face, your heterosexuality was thrown into profound question. Suddenly, in the 21st century, I find myself demonstrating the amazing boot time of a solid-state hard disk to total strangers. I just have to hope those terrible lapels don't come back.