You’ve heard it from us before, but we can’t remind our readers too many times: extended warranties are usually not such a wise investment. Here’s an excellent case study. Ryan pays $9.99 per month for a Geek Squad Black Tie service contract on his HTC EVO. For that much money, he logically assumed that when his phone malfunctioned, he would not be left phoneless for 30 days or more. He was incorrect. That may actually be worse than getting a replacement or repair under the normal manufacturer’s warranty.