There's something about an all-you-can-eat buffet that's hard to resist. The trays spilling over with spaghetti, mountains of spring rolls, and ice cream machines surrounded by unlimited toppings.

Ah, the buffet — where you're master of your domain. Some believe buffets are the greatest way to eat. They're the perfect melding of our hunter-gatherer past and our eating-on-demand present: You don ...