My car needed new windshield wiper blades. There are two auto parts stores on my way home, depending on which way I go. I figured I'd try the smaller independent store that's not on my usual route home. After I told the guy behind the counter what I needed, this was the conversation:
Him: Do you want the cheap blades, or the really expensive ones?
Me: How long do they each last?
Him: It depends on how well you take care of them.
Me, internally: You are technically correct. The best kind of correct.
Me, externally: How much do they each cost?
Him: The cheap ones are $10 each, and the expensive ones are $11.
Me, internally: Oh, you!
So I got the "expensive" ones. I just looked up the prices at the other store, and they charge 2-3x as much.