I'm going to be getting myself an iMac very soon, but I don't know if AppleCare is worth it. I have a credit card that doubles all warranties, so this should double the initial 1 year right? Is the extra year of AppleCare worth it, or will the AppleCare warranty be doubled as well? It's only $130, but I'd like to know if this would be a $130 well spent. Do iMacs break a lot? Thanks.