depends on where the person lives, where I live there really is no pet overpopulation problem. at all. the idea is ok, but it has some bugs. a LOT of breeders have limited vaccin protocals now, and those puppys wont be vaxed, they fail to take this into account. there are also plenty of people who will not buy from a breeder that does not have limited vaccine protocals. now I know this boards opinion on the matter, but there ARE a lot of people who go natural, and this this does not take any of this into account.