I do not have a cat so the whole litter box thing is a mystery to me. I do know, however, that they are entirely necessary and most often they are pretty hideous and stinky. If I owned a cat I think I would opt for the ModKat litter box. It compliments any decor and the rooftop access to the enclosed litter box area allows privacy for those cats that don't want to perform in front of the world (can you blame them?). There is a reusable liner that makes cleaning it a breeze and it's friendly for the environment. Costs $180 but isn't your cat worth it?