It’s not worth shipping and handling, it’s beaten up, and I don’t know anybody who wants it. Nothing is upgradeable, unless you count inserting a microSD card.
Of course I could use it as a janky media server or a dumb SSH terminal, but I’ve already got other machines for those jobs. Or I could recycle it, but what’s the fun in that? Suggest me your wackiest programs to try, dangerous distros, or most unorthodox setups to make use of it.
WireGuard, and an external HDD. Run at a remote location for off-site backup.
I do this with a raspberry pi 3 at the in-laws. I copied the data over locally before setting it up, and after that it’s just nightly incremental rsync, which is fine even over my slow (35Mbps) upload.