Quoted from Darscot:Just me personally I can't imagine doing Elvira or Munsters. DeadPool or Pulp Fiction might be ok but I just don't see there being any room to do anything interesting.
I think you're looking at it the wrong way. Example: I'm a musician, and back in college, I was the musical director for our A Capella group. We competed in the ICCAs (think: Pitch Perfect movie). Our small group would meet twice a year, and brainstorm songs we wanted to use in competition, and by extension, other performances. I was tasked with transcribing the music to the voice parts, and teaching it to the group. 75% of the time, I really disliked the songs our group would select. It was initially painful to sit there and listen to each song a million times to write my sheet music.
I found quickly though, that while I didn't have any attachment to the music that was selected, I found extreme satisfaction in creating music that would be enjoyed by others. I imagine that pinball programmers feel the same. Not all of them will enjoy all or any of the themes that they're handed, but to be able to create something that you can see other people enjoy for years and years is a fantastic feeling.