Hey orbit,
we would probably run it on lan only, and the server doesnt take many resources - effectively on most computers it wont even affect what you can run simultaneously with it.
anyone who joins the game can actually save the game and host the game from that point on after the lan. unfortionately in most cases the duration of the lan is sufficient for the entire lifespan of the game, after which point it's probably better to start a new server.
hopefully this helps ya a bit
