It's very tempting for people to have a free gift or anything to them that's free. Before i used to think that "free" means you don't have to pay, i thought i was just as simple as that, but now i know, as long as you're making decisions, there's an opportunity cost involved. Take the soup for example, the person who received that bowl of soup might think he's lucky to get a soup for free, but as everyone says, is that bowl of soup really "free"? He might found a dollar bill on the floor at the time he spent drinking the soup; he might found a job or something else. We might not see the opportunity cost everytime when we do something, but it's there, when we make decisions, we are always giving up our second best alternative. So I agree with what Tim said, "there is no such thing as a free lunch". Everything comes with a cost.

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