When you have more than 3 or 4 of a kind of instrument (like dulcimers, banjos, drums, etc) it helps to have names to refer to them, even if the 'name' is only the maker's name.
When I check in with my fiddler husband about what instruments we'll be taking to a party or gig, or simply when we're going to practice at home, it helps us to be on the same page when I refer to a specific banjo by name... the Ramsey, Blondie, Stichter, Hog Sisters, Cockerham, PigHead, Man in the Moon... thus my husband knows immediately which banjo I'm talking about and thus what kind of repertoire/style I'm thinking we might be playing in, and what keys. Plus, it's just more fun!
Since I never eat my instruments, I've never found naming them to have any effect on my ability to sell them. heheheh
Those irritated by grain of sand best avoid beach.
-Strumelia proverb c.1990