Having 2 cats is much better for us. They keep each other company all the time but esp. when we're out. And they also keep each other fit by playing around. So, for us, 2 cats was natural decision, but of course it doesn't suit everyone. And some have more than 2 (I'd LOVE to have more cats, but at the moment no, hopefully later though). Sure they might be a lot of work sometimes, but they sure also give so much back to you. It's fun seeing them growing up, playing and discovering their abilities to do things.