Well I'd propose that there is a niche that the "designer" breeds are filling that isn't really filled by any existing breed, either. Otherwise, nobody would be buying or selling them. (Based on my experiences I don't think that most people who have most of these cross bred dogs now would have trundled down to the shelter if their mix didn't exist or wasn't available.)
I don't think that necessarily follows. I think people tend to get those dogs because they are trendy and hip. Because they are told purebreds are bad, and unhealthy, and that the designer breeds have "hybrid vigor". Certainly, the guy who invented the "Labradoodle" considers it a gimmick.
http://www.globalanimal.org/2010/12/02/man-who-created-labradoodles-regrets-the-cross-breed/25768/
And most of the people choosing these
should go to the shelter for their dog, the traits they want exist there.
At any rate, we are unlikely to agree on this, and I wasn't really that interested in getting into further debate on the value of designer dogs, I thought I'd said my piece on that earlier. Today's post was because there was skepticism expressed on the thought that people would want "big, stupid, lazy& dim-witted pets", and I thought it worth mentioning that in fact, that is what most people really
do want. They wouldn't put it in those words, and I sure wouldn't use those words if trying to market the amazing new pet breed. But the reality is that while most of us dog-oriented people want dogs that actually have dog behaviors, there is an enormous and growing section of the pet-owning population that really don't. They want a sweet, easy-going pet that they can take to the dog park when it's convenient, learns a few basic behaviors without drama; if they get busy at work and don't have time for the dog park or a walk, the dog can just chill at home without stress. Gets along with people, other dogs, and small animals. Low shedding, minimal grooming. And definitely, low vet bills!
It's something I've thought about before, as an occasional breeder, and discussed with friends. What we want in dogs, and what the general public want in dogs, are very different. I have a friend who is very pessimistic about it, and thinks that the general public need for really low-drive dogs, and the fact that most dogs act more like dogs, is going to eventually lead to a complete ban on dogs. I can't breed mellow dogs just because I know it's where the biggest market is, that's just not in me. I would rather have no Staffords at all than Staffords that didn't act like the breed.
But while in general I don't agree that it makes sense to create designer crossbreeds to fill a niche, believing that most niches have plenty of dogs to fill them already, I did feel that I had to admit that there is
one niche that really isn't being filled, and that I'd have to change my stance if anyone really tried to fill it.