I'd have to admit I'm biased in regard to the interactive narrative. The problem with cRPG's is their replayability, and that's a huge factor, for me, in whether I consider a game a worthwhile purchase. I just won't replay a game to see where a different dialog branch will lead me anymore, because in the end I know I'll arrive at the game's linear conclusion regardless.
It's the mechanics - the number of classes, skills/perks/feats, spell variety, loot variety, the inventory system, micromanagement, a good, exciting combat system - that directly affect it's replayability. For me. The graphics, story, and cutscenes are important, yes - on the first playthrough. After that, it's all about *gameplay*.
I played ME multiple times for the classes it offered. As for the dialog? On the replays I hit the return or escape button to fast-forward through it, because I'd already been there, done that.
Believe me, I *wanted* to love Dragon Age 1. I still greatly respect Bioware. In the end I just couldn't. From what I've read of DA2, they didn't address the problems and lack of content (again, mechanics & gameplay) of the first game.
It's my hope that my impression of DA2 is proven completely wrong (when I eventually buy it). From what I've read, and seen of the demo, however, I fear I won't be.