Picture this: you're planning to upgrade to the latest iPhone, counting on that trade-in credit to soften the blow to your wallet. Then you check Apple's website and—surprise!—your device is suddenly worth less than it was last week. Welcome to the reality of Apple's latest trade-in value adjustments, and spoiler alert: it's not all good news for iPhone owners. Apple today updated its trade-in values for iPhone, iPad, Mac, and Apple Watch models, with many values decreasing across the boa...
