It will probably be once every couple of months that I make backups. Maybe only twice a year. Access will not be very important, because they are "just in case." I haven't had a reason to ever access backups I've made for this machine yet *knocks on wood*
I have a drive for my system and documents, a drive for music and assorted video files (no, not
that), a drive for software backups, and a drive for movies / tv shows.