What does "maintain" means in that context? Once you have ripped your cd and stored it somewhere there is nothing to maintain afaik (well appart than having backups if you don't want to ever rip them again).
I have thousands of text files on my computer. I don't need to "maintain" them (beyond backups, as you mention), but if I want to find one that contains a particular phrase that I can't quite remember the exact wording for... I'd better hope I stored it in a meaningful directory's subdirectory's subdirectory, with a meaningful title.
Yeah, not much to maintain, but Picard does keep my tags up to date if necessary.