I guess it's because I live in one of the safest cities in America that I don't see the point in being so secretive.
When I recently moved into my new house I saw moving these big ass games into my house as an icebreaker for neighbors. "Hey what do you got there?" "Pinball machines! Come play!"
We even set up a couple in the garage for Halloween (we moved in a couple days before), so the neighborhood could play.
I'm not hiding cash all over my house, and if someone tried to take one of my games, the whole neighborhood would know it (one of the perks of getting to know your neighbors).
Just don't steal my wife, kid, or dogs. Anything else can be replaced. No big deal.