7.Lowchen ($3,000 and up)
The Lowchen, which means “little lion” in German, looks similar to popular toy breeds like the Maltese. Although they may look like some common breeds, Lowchen are very difficult to find. Only a few hundred Lowchen puppies are registered at official kennel clubs around the world each year, and their rarity makes them expensive. But their playfulness and intelligence makes them wonderful companions.