This indicates a breeder who is concerned about the quality of the breed. This is a responsible attitude. A simple phone call will allow you to find out exactly what is being guaranteed. Ethical breeders do not usually sell show quality animals into strictly pet homes. Ethical breeders do not sell to homes that are dedicated only to breeding and not showing.
Breeders work hard to establish a bloodline and are concerned with protection of the breed.
As a result they are not willing to let a novice ruin what they themselves have worked so hard to build. The purchase of a show quality animal demands a great deal of knowledge. Buyers of such animals must be willing to educate themselves on the finer points of the breed. Other things to consider. Breeders advertising pups under this age should be avoided.