I would have bought two LEs...alas. In what world do the people that think Superman isn't a good theme live in? Superman is a top 5 franchise of all time by any definition. It is probably eclipsed by Star Wars, Harry Potter, Lord of the Rings and now Marvel universe but that might be it. Maybe Batman or TMNT? There have been 4 modern era Star Wars pins, 2 modern era Lord of the Rings pins and like 4? modern era Marvel pins. There has been 3 modern era Batman pins and 1 modern era TMNT pin (granted, it is TERRIBLE). There would certainly be a Harry Potter pin if JK Rowling would allow it. There is one classic era Superman pin and while it may be decent for its time, frankly it sucks.
I just don't see how a pinball machine featuring Superman, whether it was based on the Reeves' movies Superman, Man of Steel movie, Justice League (comics and cartoons, not the movie), or a Batman/Superman theme wouldn't be a hit as long as the layout and coding were solid.