You can adopt a Kai Ken at a much lower cost than buying one from a breeder. The cost of adopting a Kai Ken is around $100 to $500, which covers the expenses of caring for the dog before adoption and often includes spaying or neutering, vaccinations, and sometimes microchipping. In contrast, buying a Kai Ken from a breeder can be prohibitively expensive. On average, it costs $1,500 to $3,000 to purchase a Kai Ken puppy from a reputable breeder.