4. Tibetan Mastiff – $10,000
This large dog entered the Americas from Tibet, where it protected sheep from predators such as wolves, leopards, and bears, and became widely domesticated. When this breed was used for conservation, it became very expensive. Now, these dog breeds are gradually disappearing. This breed is highly alert and will protect your family at a moment’s notice. Tibetan Mastiffs are relatively healthy but be prone to genetic conditions such as hip dysplasia, hypothyroidism, and eye anomalies.