I was looking at my Steam profile to see if there was a way to see when I got a game (didn't seem to be) and noticed that I've had my account since 17 May 2005. I know that was because of HL2, but it doesn't feel like it's been that long.
--
http://img404.imageshack.us/img404/5861/raydyn2.png
http://img.imgcake.com/Punny2gifmy.gif