Let your mind wander back to kindergarten, and think about those simpler times and all the fun you had. It doesn't matter where you come from; you have to admit that kindergarten was fun. You played with toys, sang songs, colored pictures of fire trucks, and learned radically new concepts like sharing and the letter Q.
Suppose you buy a gallon of gas for $3. How much did it cost you? You say, "Williams, that's a silly question. It cost $3." That's where you're mistaken, because there's a difference between price and cost.