I can honestly say NO ONE has ever seen in my garage and said anything like 'oh big deal' or anything negative for that matter.
The response i mostly get is along the lines of "WOW.. pinnies!!" or "BLOODY HELL" and "i've never seen so many pinballs in one place!" followed by questions of what do i do with them, ie do i restore them to sell, or do i operate them on location, and where do i find them.

I had painters here about 12 months ago repainting my unit, (my place is rented) one of them started with the "do i ever sell any' spiel, and says he told his wife and she wanted one, so everytime i see him now he asks if i have any i want to sell... fat chance!!  My landlord has seen them many times and usually stops in if im out in the garage working when he's here doing the lawns etc.. seems i have now got HIM interested in them coz he mentioned he would like to purchase for himself, and asked me where he would find one (he knows i wont sell any of mine)