So I was thinking it over, and I think I figured out at exactly what point my interest in this series started to drop off (currently stalled around 100 pages into book 4, with no real interest in picking it up again).
"You know nothing, Jon Snow."
After that, eh...I dunno, I think my mind considered the most compelling parts of the story kinda over; everything after that just seems like dull politics and bitchiness and angst. :|
Unrelated to the above: remember little while back when we had the brief discussion regarding Ned's suicidal sense of honor? Found an image that perfectly translates exactly how naive that kind of personality would be on a different character that actor has played.