>My guess is that the people who used slide rules in their professions and were willing to pay over $50 to re-experience the nostalgia of playing with one again

>My guess is that the people who used slide rules in their professions and were willing to pay over $50 to re-experience the nostalgia of playing with one again are now all dead. The Slide Rule Universe begs to differ! https://www.sphere.bc.ca/test/sruniverse.html https://www.sphere.bc.ca/test/sruniverse.html Plus, the site is GeoCities Pretty :-) [Edit: Fixed typo]