Keep 'em both! I've never regretted buying an instrument, just failing to do so. When I bought my D-28 Martin several years ago the fellow had a D-18 for sale too. I've long regretted not buying both of them.

Anyway, you never can tell what might happen. Instruments need repairs and a good backup is always nice to have around. Several fiddlers I know have "foul weather" fiddles so they can protect their prizes during rainy festivals.

The mind of a musician can conjure up an amazing number of reasons to own an incredible number of instruments. All of them are valid!

Bruce (Owner of 20+ stringed instruments)