I have 1.5TB of music. It's because I have so much that I make sure I've got backups, backups of backups, etc.
Just get some kind of syncing client so that you can just copy the deltas when you're making backups of backups. Offsite/cloud backup couldn't hurt, either.
Just get some kind of syncing client so that you can just copy the deltas when you're making backups of backups. Offsite/cloud backup couldn't hurt, either.