TOS wrote: doesn't magnetic media have the same long-term storage issues as everything else?
i.e. the stuff physically doesn't last very long?
Yes, though the materials keep getting better. I'll hazard a guess a tape is good for about four years before data loss becomes significant.
The advantage of magnetic tape is that the field gradually fades, but digital data can be easily reconstructed from a weak magnetic field. Once optical disc stops working, the data is corrupt. I have cassette tapes over 30 years old that still play fine.
Remember, people, to forgive is divine. In other words, it ain't human.