8. Dogo Argentino – $8,000
These dogs are used for game hunting. Due to their body size, Dogo Argentinos are considered to be one of the most expensive dogs in the world. Due to their muscular body, these dogs are used to hunt wild animals in South America and Asia. Their lifespan is on average 12-14 years. As for their ailments, they can see hip dysplasia and deafness, which can cost upwards of $1,600.