It's interesting you mention the Chipmunks. They have been around since the 50s and, technically, rebooted about every decade since.
I really have no problem with something I once loved, living on in a different way. I don't have to watch it, but a younger audience may find it just as enjoyable as I used to.
EDIT: I am going to get hell for this but, as a guy who GREW UP with the original Ninja Turtles, even I can admit the original cartoon sucked. I actually really like what Nickelodeon did with the new show, for the most part.