It is interesting reading the posts here by those who have used micrometers on a daily basis. While I have been familiar with mike's while working as a manufacturing/industrial engineer, they were not something I used all the time. Since getting into guns and reloading, I have acquired a B&S 0-1" as well as a government surplus Scherr-Tumico. Also have a B&S "disc" micrometer used for measuring paper/cloth thickness and a blade micrometer.
The Brown & Sharpe 0-1" and 2 dial calipers were from work before I retired. The were just sitting in a drawer in the gage lab because everyone wanted the digital instruments. Several couldn't read a vernier. I asked if I could buy a surplus micrometer and caliper. They just gave them to me. The others I got on Ebay. I guess, if I ran across a good deal on another mike, I might bid or buy but I sure don't need any more.