Even though there is some reward for expertise, backups are not difficult. What exactly does Big-4 bring to the backup table that none of us with Amanda, rsync,

Even though there is some reward for expertise, backups are not difficult. What exactly does Big-4 bring to the backup table that none of us with Amanda, rsync, or BackupExec could do? Cost of resources aside, a person could run hourly full-backups all day every day and have just as good a backup regime as a billion dollar company. Time-to-restore is something that the aforementioned expertise factors into, but a good backup is the linchpin, and can still be restored by whatever means.