TZ and TAF are both excellent games. Haven't played TRON, but I can definitely tell you as an owner of both TZ and TAF that you won't be disappointed with either. Riffbear has a good point about playability vs. theme. TAF has a wonderful theme (one of the reasons I like the pin so much is because of how much I enjoy the movie it's based on). As for TZ, you can literally pour hours and hours of play into it and it just doesn't get boring (although servicing it is a nightmare).