So when I've gone in for service at an Apple Store, they always take my Apple ID down. I always wondered if those who buy more get better service. For example, the person who has a purchase history of four or five iPhones, a few iPods, and pair of iPads, and a few Apple laptops might have a better chance of getting an out of warranty fix than someone who has only ever purchased one or two iPhones. It always seemed like this would make sense because Apple wouldn't want to alienate its diehards. Just a theory...