I know what you mean, Sins! I've found something that helps find homes, though. When there's a potential recepient who has some reservations, I offer to include one large bag of kitty litter, one large bag of dry cat food, and the neutering/spaying bill with the kitten. That eliminates the "Oh dear, it's a female" argument, lets me keep tabs on the kitten until they're older, and it's a LOT cheaper than keeping them.