Fourkids, you've been dealing with disreptutable breeders. A decent one WILL, no question about it, expect you to contract to returning the dog to him if you can't keep him. There's good reason for that - why do you think rescue does it? Do you think that we WANT to take dogs back, that we WANT to have them taking up spaces which cause rescue to have to say that they can't offer that space to a dog who will die in a pound without one?
You are speaking as someone who has bought pups from breeders. I am speaking as a rescuer who deals with this sort of situation and who day in, day out picks up the pieces from the bastards who take the buyers money and then won't take the dog back. The GOOD breeders know this, they know the problems I and my kind face and they KNOW the likely result if they don't take dogs back... which is why they WILL and they DO.
And I can assure you that whilst you might find Jooly's comments alarmist, she as a vet and I as a rescuer know that whilst the situations described don't of course happen to every unwanted dog they are FAR more common than you are giving credit to. I'm troubled that you are presenting your opinion as fact when that is far from the case.
Puppy farming is on the increase, it's rife. I've spotted several cases of it with posters here on MN who have identified what they thought was a genuine breeder - some are detailed on Doghouse, many more have been discussed between me and the posters via pm in order not to alert the puppy farmers to my awareness. All have been reported to various appropriate authorities.
For anyone to say otherwise is misleading and dangerous to both the canine workd and to prospectve owners and their families.
Equally there is, as there has ever been, a HUGE problem with backyard breeding, where again very frequently I and other rescuers pick up the pieces... as do the vets and the families who end up with dogs with all manner of genetic and behavioural problems, none of whom the breeders of course want to take back when the shit hits the fan. There is a VERY high chance that this pup will end up one of those as a result of being advertised free and through Freecycle.