Avatar?

We rented Avatar. The #1 movie of all time. It's been 5 days. We still haven't finished it! 3 times we have sat down to watch it. Twice I almost fell asleep! Don't get me wrong....love James Cameron movies, and sci-fi. T2, Aliens, even Titanic, all great movies. Avatar? Not so much. Good story, amazing special effects, but that's not enough to hold my attention. The best thing about this movie is Giovanni Ribisi. Another under-rated actor. The other 2 hours was just ok. I don't get it.