If a machine is set up in my house, I class that as owned, and it goes on the page to reflect such.
Latest example, Earthshaker - was delivering it for a friend who had sold it. Picked it up from his Sunday, set it up at mine Monday, played it through the week, took it down Friday, delivered it Saturday. Was long enough for me to play it enough to "discover" everything and fill HS table - Owned!