I'm considering a new or refurb late 2012 Mac mini with the 1TB Fusion Drive. While speaking with the local Apple sales and service retailer about the future upgradability of the mini with the Fusion Drive, the service manager advised and cautioned the following via e-mail: "The Fusion Drive in the iMacs and Mac minis are not upgradeable in the sense that they use Apple proprietary drive firmware rather than off-the-shelf hard drives that we typically use for upgrades. If a drive were to fail in or out of warranty it would need to be replaced with a like Apple part and thus could be repairable, but not upgradeable" Isn't this contrary to the home-brewing of Fusion Drives by non-Apple, user-installed SSD and platter hard drives? I thought that if the Fusion Drive were to konk out post warranty, I would be able to put in my own SSD or spinning HD as a replacement. Confusion abounds . . . any thoughts on this conundrum? Thanks in advance for the clarification and replies.