Animated films are also doing extremely well, on the whole. Add in fantasy films with an occasional dash of action-adventure, and you'll get 90%+ of the top 10 films for every year of the last decade.
For better or worse, the days of the box office being dominated by dramas, musicals, westerns, and comedies is over.
Yeah good points. I miss the great dramas and comedies, but enjoy watching old movies a lot.