This is a question that a lot of puppy buyers have. I don't want a show dog, why should I care about champions or performance titles in the pedigree?
1. When you buy from a breeder who is actively competing and showing, they are out there in the fancy. They are talking to other breeders, attending seminars, gaining knowledge of structure, heritable diseases, bloodlines and care. This means they are not working in a vacuum.
2. Breeders who compete are actively looking to improve their line. That litter they are producing is one they are hoping will produce the next step in their program. They are working for themselves. You reap the benefit since there are usually a small number of show quality, the rest are pets. Ever hear the addage you work harder when your selfemployed? It is the same philosophy here.
3. Structure, structure structure. Breeders who compete will have more structurally sound dogs. In addition the core four clearences, the dog's structure will determine if it will live most of it's life comfortable with activity or not able to go and do because of structural break down. This is where those Champion titles really come in. Champions are not judged on beauty, but it is a really nice by-product. They are judged on structure, angulation, movement, etc. Your pet puppy will benefit from these attributes.
4. Temperament. I want a dog that comes from stock that has been out in the world doing something. Dogs who compete and title not only prove themselves in that venue, but also that they can handle life beyond their home. Dogs that stay at home may have great temperaments but, how do they behave away from home in stressful conditions. Dogs that compete are exposed to these stresses and succeed.
5. My vanity. Okay, it is hard to look at a golden puppy an not think what a cutie! But,
if I have chosen to buy a puppy and not rescue, I want my dog to be gorgeous. Call it vain, but that is what I want.

I know that with parents that are proven in competition that is going to run in the line. I want things like proper coat, dark pigment, great structure, lovely top lines, fantastic headpieces, and lovely expression.
A word on champions in the grand parents generation and further back...if there are not titles in the parents generation, those grand parents titles don't mean much in the grand scheme of things. Quality can be lost in just a generation or two of careless breeding. It is not necessary for both parents to be titled, but it would be nice. At least one should be.
It always boggles my mind when less than reputable breeders point to the Champions in the grandparent or great-grandparent generation as a selling point.:doh:
They know that these titles are important and tough to get so they claim that their dog is just as good with out doing anything to "prove" them in competition.