Yes, Cats are fucking dumb as hell. Dogs do dumb shit too, but generally only as puppies. Cats will continue to chase laser pointers forever. Cats are entertaining because they're stupid. They don't really have any other use other than entertainment in a modern, mouse free house.
I'm a dog person, all the way. I like my possessions, a pet is just a glorified possession, to have a use. Every dog I've had has, at least, been an early warning alarm for anyone coming home, if not an actual guard dog.