I was in vegas recently and I played a few slots while I was there. I saw they use the led style buttons that change text and images based off of whats happening with the machine at the time. Why hasnt pinball adopted this yet? Seems to me like the playfield would be very clean and it would allow the rules to REALLY be written and changed completely, rather then being set based off what the inserts say. Would definitely add to the upgrade of code and such. Maybe even offer such features as special edition paid code or other such features. Could be a cost issue im sure, but I think this would be really cool.
Im not sure what the technical name is for this type of technology, but I know they make keyboards with this feature now, and Ill post a pic below for reference. I would think all the inserts could be clear, and they would have led boards behind each that could be set to any image, text, etc. All very cool and next-gen in my opinion.