What are Johns arguments that he should receive a Harrier Jet because a contract was formed (Look back to Week 4 for a discussion of offer and acceptance)?

What would Pepsi argue in defense that there was no contract?

Assume the court found that the commercial was a valid offer and John accepted the offer by turning in the Pepsi Points. What type of damages could John receive? Could he receive monetary damages? What type? What if he is seeking specific performance?