No money in breeding purebred dogs. I worked for a breeding kennel with miles-long waiting list and puppies were $2K and up. They lost money every year. When I bought my poodle 6 years ago, the breeder (whom I'd known for years and was candid with me) stated they'd lost $5,000 on a single litter. The breed's market had crashed and they could only sell puppies for $1K, when they previously sold for $4K and up.
I've been immersed in the dog world a long time, only recently stepped away. The thing about reputable purebred dog breeding is there's TONS of testing needed to be done, depends on the breeds, but for poodle its OFA hip X-rays, eye certification and genetic testing. That's why the dogs are so damn expensive. If you really want to sell dogs at high prices, you have to have top competition dogs - whether that's conformation, agility, flyball, herding, weight pulling.... whatever. If you're selling high priced dogs for purpose, you have to prove that your breeding dogs are superior. That means training, grooming, hiring a handler or traveling all over competition circuit. That's why purebred dogs are so damn expensive, even when sold at a loss.
The other way is literally puppy milling or backyard breeding, which... well... it keeps the veterinarians in business.

The kinds of crazy these people bring into the vet clinic is unreal. Dogs neglected during whelping, emergency c-section, and the pups are already dead because of the neglect. Plenty of people try to get a litter of puppies to pay for XYZ and end up losing a thousand dollars and get no puppies at all. The way people do it is getting colors of dogs that are mismarked,disqualified from show, so they can get decent dogs on the cheap from show breeders and sell them as "rare colors".

But hey, people fall for that BS all the time.
The other thing about dogs is you cannot cull puppies. Ever. So developing a breeding program without investing thousands upon thousands is near impossible. Not like rabbits where you can breed heavily, buy and sell breeding stock freely, and cull aggressively.
Dog people are a special kind of crazy.
