How long does your vet think it will take for him to grow out of it, if he does? Do you have to take him in for check-ups on it regularly? I don't know anything about heart murmur's in dogs, but I know babies can grow out of it. You thought he was cheaper because you did not buy breeding rights and you say his nose is more squished in than the other's? When I saw his picture I thought to myself he had a longer nose than most! Vegas does not even have any sort of bridge to his nose. I think your right though about the breeder knowing, why would she ask so much less than his sister?