Quoted from GibGirl:
Or another - add WiFi and NFC to machines, and release a free app. You can walk up to any machine, use your app as your first ball sits in the shooter lane, and now the game knows your profile. Your score is uploaded to your phone afterwards, perhaps available on a web site, and initials are auto-entered. Now you can track your scores over time on a specific machine and compare to friends. Operators can keep track remotely of machine use and earnings, and get instant alerts if there's a problem.
And then operators will compare damage to their machines with the player who last played it, and your profile will be banned from their machines, and somehow the attempt will be made to hold you liable for something, in the manner that a car rental agency might blame you for damage to the rental car unless you report existing damage before you drive it off the lot.
Or, crime scene detectives will know they have more than closed-circuit cameras at their disposal. They can know that the nearby pinball machines will carry data on who was there at the time of the crime or just before.
Wild ideas, perhaps.