all of the above are a mill. Caring more for $ than for the animals is generally what defines a miller for me. If you buy a pup from a pet store, he won't die but It'll mean a whole nother litter will be born and also suffer. You also pay a whole lot more than from a rescue and also more than the average good breeder, but most likley spend lots of $ extra on vet bills. Of all of the dogs from pet stores I've met, they've all been sick at one point that normal other puppies don't usually have.