Timeshock - the Pro Pinball video game, which is now being made into an actual physical machine.

The video pinball simulation was awesome - maybe the best ever done.

I've talked to many people that regard theme as "meaningless", and it's just about rules and shots. I suppose it's possible, but more likely they aren't tuned into reality

The theme, graphics, music, callouts, lightshow, shots, rules, etc. collectively create the full experience and people not willing to recognize that are most likely stubborn and/or deluding themselves. Or at the least missing out on the full pinball experience

A great game can overcome a bad theme for someone, but it's still has it's relevence. A perfect example: many people prefer Family Guy over Shrek (and some vice/versa). You could re-theme Medieval Madness to "Little Ponies" and it would NOT get the same love - although 4-8 year olds will like it more!