Tron is fun to play on location; that's about it. It would get boring real quick in a home environment. When 75% of my games land me in Sea of Simulation... not a keeper. Even in recent Sterns, I'd take X-Men over Tron in a heartbeat. It's every bit as hard, and there's so much more to do.
WoZ too. It's LOTR level deep, and with twice as many things to shoot for to make progress. And it's a constant risk reward of 'Do I cash in no hold flipper and hope for the best in ECMB or wait and hope I get something better like lights on / off? Can I handle weak flippers and get double jackpots in Fireball Frenzy or just start FF, but maybe I'll make a wrong flip and get lights on..."