interested in trying this out one day with my son: https://wiki.archlinux.org/index.php/xorg_multiseat
there is one desktop in his room (also my office). Would be neat if all you needed was an extra monitor, keyboard and mouse. I could work and he could play on the same machine.
or more generally: a central computer for the house with many light clients with direct access.
@jb55 after I got a new monitor, I put the old one on my kitchen table, got another keyboard and mouse, and now I basically have a kitchen terminal.
I also have my TV as a third monitor.
The biggest benefit is having only one very expensive (video card/sound card/whatever) and enjoying it everywhere.