I'd do it. Nothing like introducing pinball to people who might not otherwise play especially since it sounds like you won't have hundreds of people coming through. Another plus is you might have someone come by who didn't know you "you were into those things" whose aunt has one sitting in her garage and "let me see what she's doing with it". See where I'm going with this....?! If they're mostly neighbors I doubt they'd beat the crap out of it, unless you have "those" kind of neighbors.