Why bother?

The first trailer is out for Disney's upcoming "live action" adaptation of Beauty and the Beast, and I... well, I don't really see the point. I sort of understood the idea of telling a more fleshed-out version of Cinderella, seeing as Disney's earlier films were actually pretty light on plot and characterization (other than "she's saintly"), but Beauty and the Beast is already a fully-told story. This version just feels like an attempt to tell the exact same story (images and all!), but with Hermione Granger acting alongside a crapload of CGI. And hopefully less singing.