Why must there be such a reliance on CG and 3D whilst sacrificing character development, plot, etc?

Rating: 5/10 (24 December 2012)

I and some of my family went to see this last weekend and left the theater sorely disappointed. All of us had read The Hobbit during our teen years and complained to each other afterward that the movies dialog and recreation of events from the book were quite a bit off.
Not only that, since this was shot in 3D, it contained too many 'roller coaster' action scenes to show this off as well as the seemingly de facto standard of a reliance on CG to help carry a movie. Come on Hollywood, stop pandering to the lowest common denominator!
To be fair, if you hadn't read the book and could see past the cheesy dialog and physical impossibility in some of the scenes it was OK.