What's the advantage of modern new hot pot joining traditional chafing dish?

The modern new Hot pot with composite joining product structure, usually by Hot pot plus dry pot, pot can eat a variety of products, and several characteristics of ten types of products, every kind of food can be corresponding to different customer tastes of people, can fully cover all customer groups; while the traditional Hot pot use the single type of product structure, usually in pot soup, single product structure, resulting in limited customer groups.