Why do people use Redbox?
Why is it more expensive to buy a Lunchable than to buy items separately than put together by oneself?
Why is it that the black sandals on the left are $15 more expensive than the one on the right when they have exactly the same style and materials?
Why do restaurants have happy hours where drinks and food are half off?
Why do consumers respond to Office Depot's Mega Sale flyer?
Answer each.