I plan on upgrading my iMac every other year by selling the current one and adding a few hundred more to get the latest refresh. I also plan on buying AppleCare so there will still be a warranty for that 3rd year which should make it easier to sell. To those that sold their iMacs, is it relatively difficult? I ask because these are very expensive purchases and I can't imagine there being a huge market to buy a used iMac for over a thousand when you can pay a little more and get peace of mind from purchasing one brand new. Did you find it easy or difficult? Did you add AppleCare? Was it through Craigslist or eBay?