Ten jokes, can you guess which is more expensive, cow or chicken?

Ten jokes, can you guess which is more expensive, cow or chicken?

One day, I was picking up cans when I heard some children chatting. Child 1: Can you guess which is more expensive, cow or chicken? All the other children replied in unison: "Cows are expensive!" Children 1 say "no" and other children ask "why?" Child 1: "Nine cows are only a dime." The other children asked, "What about the chicken?" The child 1 said, "Chicken ..."