Saw a post on mastodon in the last day or so that someone dug up a network card for the old 486 they had been working on getting back to life. Might be a use case there, as well as in aviation and medicine - fields that move exceptionally slowly and tend to have expensive equipment with long lifetimes.
Sell them to someone who will test and resell them to the airline or medical industry… Manufacturing is a likely customer as well, plenty of legacy equipment there that’s airgapped and still running decades-old hw/sw.
Youtube warning, some Boeing 747s
Recent BBC article
(This is a wrong answer since you only have a single pack. If you had several cases, you might actually be able to make a buck)