i agree wholeheartedly P, the one I sponsor is one that I would love to home (he is a semi long haired, 3 legged, one eyed tabby!!), but he hasn't lived in a house for years, so isn't litter trained, and they also dont think it is fair to make him live in a house, he is used to a farm environment, so sponsoring him is the next best thing.
I think we decided to do sponsor a cat cabin as well actually.