While moving, I found an old AppleCare Protection Plan retail box, still shrink-wrapped. Based on the images on the back, I'm guessing it's more than 5 years old. The part number matches the iPad 1, so I'm guessing I bought it with the original iPad and never activated it? If that's the case, is it worth anything? Could I possibly use it the next time I buy a new iPad? Or return it since it was never used?