The problem is, with T2, you had a story franchise that had real meat to it. It wasn't just action. It was action with a REALLY cool story. The following films were decent. But once you start playing around with alternate timelines, it feels like it just waters down the stakes in everything that you do afterward. So everything else just feels lacking in any real substance. The Sara Connor Chronicles series had that same problem. But they overcame it by having real character-driven stories. It's really a shame that series died. That plot twist at the end of S2 really had them set up to go some interesting places.