SSDs are poor for long-term storage, as flash cells need occasional (=every few years) refreshing to not lose their data. Tapes or regular hard disks work better for that purpose.
When you're trying to survive and eventually thrive, knowing that post-apocalyptic canned food is a strictly limited commodity, you'll want all the information you can get. Possessing a list of all the Pokemon or fictional ducks in the process is a natural consequence of amassing every file you can.
"Pound pastrami, can kraut, six bagels--bring home for Emma" can spark the rebirth of civilization.
