The growing numbers of All-You-Can-Eat dinings, how do you perceive this?

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I just saw another All-You-Can-Eat dining was recently opened at a mall near my house. There are more of them appearin nowadays here and there. I once was happy with this arrangement, thinking what a great benefit it would be for us. Later on I think we all know that we eat to live and not live to eat. To take as much food as our stomache can hold is not only unhealthy to our body but also (the worse case) it can slowly cultivate our greediness to grow. What do you think?