First of all, go back and take the loaner. I know you know a machine doesn't have feelings, so there's no reason to be without a machine if the dealer is willing to loan you one. I think that's very generous, and I'd be surprised if many dealers would do that. If something happens to the other machine, the dealer has insurance to cover a major catastrophe, and can fix it if it's a minor glitch. After that, it takes as long as it takes for your machine to get fixed. That's why many of us have a less expensive " back-up" machine.