You do not have to have own a large house to own a large dog (although a tiny apartment is not going to be big enough for one of the giant breeds). If you can take him outside for a good hour of two of exercise every day... a large dog can live in a small house or apartment just fine.
Dogs have been selectively bred for thousands of years, sometimes by inbreeding dogs from the same ancestral lines, sometimes by mixing dogs from very different lines. The process continues today, resulting in a widening in appearance without speciation, "from the Chihuahua to the Great Dane."
These are some of the factors to consider when making a decision about which breed is right for you. With these points in mind, browse through the dog breed profiles and discover which dog will be a suitable match for you.
No one is suggesting that people should not get a dog from a shelter or rescue if that’s what they want to do. Many breed clubs were among the first dog rescue groups in the U.S. Breeders love dogs and believe in rescue. But people should also have the option to purchase a purebred dog from a dedicated breeder without harassment or guilt. And breeders should be able to breed their dogs without punitive laws.