The price of Benqiu dog food varies depending on factors such as specific product series, specifications, sales channels and regions. Therefore, I cannot directly answer the question "Is Benqiu dog food expensive?"

Usually, the price of dog food is related to factors such as the quality of its raw materials, nutritional content, brand awareness, and market positioning. If Benqiu dog food uses high-quality ingredients and provides comprehensive and balanced nutrition, the price may be relatively high. In addition, different specifications and sales channels may also lead to price differences.