No reason for a live action movie unless it adds something new to the story.
Best known example? Hook, an adaption of Peter Pan. But you had Robin Williams in that movie and his presence carried the film.
Hook, another of my favorites. I agree with you. Only reason to go live action is to add something new. Williams was so great. Miss him.
Loved Dustin Hoffman, Julia Roberts, Maggie Smith, and Bob Hoskins in it, too.