Here's the thing: In the video game world (the multi-billion dollar video game world), nearly all of the top-selling games are original IPs. Why? Because a team of highly creative young people like to create wonderful new worlds using their young creative ideas. They don't want to be limited by petty licensing restrictions. Unlimited creative freedom is why people work in the creative industry.
In the pinball world, it's all about themes. Themes will shift a $10k toy by the bucket load.
Pinball also offers a very unique gameplay experience, not seen in the video game world. As I've demonstrated for many years with my games, you can create an immersive movie experience in a pinball game. Like Aliens for example, you get to play along side the actual cast from the movie. In the video game world, you'd have a new story with new characters set in the Aliens world. No one wants that. We want to fight along side the actual Colonial Marines from the movie. In pinball you can do that.
Same with Star Wars, Spider-man, Iron Man, Batman...etc, etc. All the cast, all the characters and all the action from the movie... if the pinball company negotiates a good deal. Negotiate a shitty deal (Stern's Indiana Jones), and you have Sean Mockery instead of Sean Connery. And a limp-dick game that isn't worth a damn.
Modders will right wrongs of course, but non of them are professionals, so you end up with unprofessional results.
Some big themes are on the way, and as Stern have proven with Godzilla... they can be monster commercial AND critical hits.