吃自助餐时，你是否好奇过：免费畅吃，他们怎么赚钱？从餐具大小到布局设计，从食材到心理操控，这些背后全是精妙算计。
If you've ever gorged yourself at an all-you-can-eat buffet, you've probably wondered how they manage to make any money.
Letting people just eat anything they want all willy-nilly couldn't possibly be profitable, right?
Well, grab a plate, because we're about to reveal how all-you-can-eat buffets really make their money.
Cutting back on overhead One of the things buffets have going for them is an overhead different than traditional restaurants.
That's because you're doing most of the work for them - and paying for the privilege.
You serve yourself, and in some places, you might even get your own drinks.
This means there's next to no need for wait staff.
And since the menu relies heavily on a series of regular dishes which are prepared in advance, they can hire fewer - and cheaper - chefs.
Heck, at some buffets — like Korean BBQ places — the customers are even doing the cooking as well as the serving!
Minimizing waste.
