A red Tibetan Mastiff sold to a Chinese coal baron for $1.5 million making this dog the most expensive dog in the world. The red Tibetan Mastiff is considered a status symbol in China, replacing all other expensive status symbols as a way for the super rich to show off their new found wealth. Red is a lucky color in Chinese culture and these dogs are thought to be holy animals, bringing riches and good health to their owners. These are cute big dogs and I love dogs but my question is for $1.5 million do you just let the dog out in the backyard to roll around in the dirt and play ball???