Typewriters can be useful. Specifically: lightweight, portable typewriters such as the Hermes Rocket provide a convenient, reliable alternative to computers. Type and file.
They may also ship with unique baggage:
The man who owned this typewriter was a US Air Force officer and engineer, who was principal designer of the SR-71 spy plane engines. Threaded up around the platen of this machine when I received it was a seemingly blank sheet of paper that revealed, upon careful inspection with a bright desk lamp, the imprint of some official military correspondence.