Is that actually still the case? AFAICS, most calipers around these days have similar resolution to micrometers (generally 0.01mm for 'standard' instruments) and, of course, many have the advantages of being able to measure over greater distances and, sometimes, internal as well as external dimensions.
Ah - as you will realise, I misunderstood what you had written. I thought you were 'downplaying' the value of calipers.
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