Scooby-Doo! The Mystery Begins

My brother & I probably watched every episode of the original Hannah Barbara Scooby Doo cartoons in the 80's and so I am very leery of all these newer versions that keep popping up. There was a certain feel in those originals that will never be reproduced and perhaps Scooby is best left in the 70's. I was pretty let down by the Freddie Prince Jr. movies which tried to update Scooby (like a lot of CGI updates, Alvin & the Chipmunks, Smurfs, Garfield, Transformers, etc.)with modern lingo & culture which for some reason means crudeness, krass jokes and even sexual innuendos. This movie was better in that sense, but is annoying when they stray from the original (Freddie is blond, ghosts are ALWAYS people in masks, etc.) And since we're making a "realistic" version, why is Scooby CGI? Why not just use a real Great Dane? Nick Palatas, though doing a decent impression of Casey Kacem's "Shaggy" voice comes across annoying and contrived after a while. Maybe I'm a purist...maybe I'm a grouch, but I kind of wish people would leave the old cartoons alone.