Tibetan Mastiff
Estimated Value: $582,000
Other Pet Expenses: kennel and carrier ($560), food ($60 per month), AKC registration ($35), healthcare, grooming
A Tibetan Mastiff is one of the biggest dog breeds around. However, it is also a very rare breed which makes it so expensive. In general, a purebred Tibetan Mastiff costs around $582,000. In recent years a rare Tibetan Mastiff sold for nearly $2,000,000. Bred to be guard dogs you will certainly feel safe if you can afford one of these behemoths.