It'd be scanned years later if the USB drive I've backed it up on for regular infrequent use goes kaput on me ;) The replacing every year or so sounds like the

It'd be scanned years later if the USB drive I've backed it up on for regular infrequent use goes kaput on me ;) The replacing every year or so sounds like the most robust way to do it with current best practices but that requires a lot of maintenance.