Damn, why not start a new game and play some opposite choices?
Well, I could go on writing a full essay about this but to keep it short:
1.) I don't even know what the consequences of my current choices are as is (I'm over 100hrs in), so I have little reason to be excited about opposite choices at this point
2.) I have a total of 3 games right now and I hardly have time to play them as is; many posters in this forum seem mature so let me add my bit by saying "we all have real responsibilities"
3.) I generally don't like shooter games (which probably explains why I only have 3 games on Xbox 360) and while I do enjoy similar multi-linear(?) games like Mass Effect, I found out that after an hour or so into the re-play, I'd be bored out of my mind and just can't do it. I know myself and I know it ain't going to happen.
BTW, these are my personal reasons, not to make any judgements or criticism of anyone else or the games. It really seems like I'm getting too old to play video games given the large amount of time investment required, plus technical glitches like this that forces me to look into boards and the web for answers. The NES days, those were some blissful, youthful days.