All I needed to hear was the invocation of System Shock 2, way back when BioShock was announced, to know that I didn't need to hear anything else. I've been under a self-imposed news blackout since then, and for the most part it's succeeded. I've seen a couple of screenshots, I know what a Big Daddy is, and I skimmed a Gamers with Jobs article about the game. That's it. I still don't know what the plot is, or what the game mechanics are like (well, okay -- I know it's an FPS).
Now that we're only a week away from the actual release, I figure there's no reason to try the demo. How is that different from screenshots or trailers? I'm told it's an "edited" version of the beginning of the game. If BioShock actually has the complex narrative and philosophical overtones that I'm expecting, then the demo won't shed light on any of that. It's a commercial, that's all. No thanks. I can wait.