I got my first certification in the 90s on Windows 98. I did it solely because I was tired of hemming and hawing when my clients asked if I was certified. After all, I'd been working and playing with technology in various forms since the 1960s. I didn't need to prove myself to anyone and besides, all certification would prove is that I had good test-taking skills. I was surprised, however, after going through the preparation and testing process, at how much I learned on subjects not directly related to Windows 98.
...read more on my Computerworld blog