I don't think so.. of course all I have are puppies for sale. I would never sell me adults and even if they weren't able to produce pups I would spay and keep them. Maybe she is taking into consideration that a puppy is a whole lot more work :-) She would probably rather open the door and let an older one out instead of cleaning up potty pads :-) good luck with your search
Don't let anyone sway you from what your heart says!!!