First, I'll get the obvious smart-ass comments out of the way:
Gary Gygax passed away on Tuesday, 4 March 2008. He will be critically missed. Let us all observe 1d6 minutes of silence.
Sorry, I know jokes like that would have him 'rolling' in his grave.
Okay. NOW with all that out of the way, I'll summarize it plainly and to the point: Gary Gygax created something that was, for decades, a part of my life. For many others, it was much greater. Overall, Gary Gygax contributed something very, very fundamental to the way of life that defined what it meant to be like me. I will miss him, as will countless other gamers.
It truly is a *shakes dice cup* *consults table* tragic day in geekdom.
In the earth lies Gary Gygax. May he rest in peace.