lancestorm on "Is this hobby still affordable??"
Sunday 3 December 2017 at 20:46
Quoted from tonedef131:Pinball machines are not designed or priced for residential use. They are a commercial device designed to make money in a public venue.
I found Gary Stern. 
Source: http://pinside.com/pinball/forum/topic/is-this-hobby-still-affordable/page/2#post-4105340