Purebred dogs are far more predictable as to their temperament, behavior, appearance, size and even color than a crossbred dog. Purebred dogs are the result of many years of selective breeding. All breeds were developed for a specific purpose and documentation is available on their history and heritage.
When you buy a purebred puppy you will know what to expect in the adult dog. Knowing the characteristics and attributes of a purebred dog enables you to narrow down the choices to those which best fit into your lifestyle. For example, how large will the dog grow and will it require constant grooming or exercise