LOL - Humans work cheap. You can feed them pizza just baked in an oven rather than nuclear power which generates a half life of something like forever. They don't hallucinate (unless they're in politics.) They don't need to go into orbit and then discover they can't dump their excess heat. They live in cute little houses rather than ... you know, and use only moderate amounts of water to take showers and boil noodles.

But what do I know? I'm just one of them.