Am I terribly shallow if I confess that I'm considering getting the triple pane replacement windows over the double panes, simply because the triple pane windows are filled with krypton gas? (The double panes merely have argon gas).
And yes, when the salesman said the word "Krypton" I cracked a smile, and he said "No, it's not kryptonite. But everyone thinks that."
Now I have this mental image of Superman stuck halfway through my living room window, overcome by the krypton gas barrier....