I've still got mine, too!! I had a hell of a time convincing my dad I needed such an expensive slide rule. He wanted me to get a plastic drug store model. Luckily, he was working for IBM at the time, and several field engineers told him (literally!) that expecting me to go four years in a EE program without a good slide rule was like him going through four years of life without hands at the end of his arms.
That did the trick!
Clay
