My current iMac is running 10.9.5 and is a 2009 i7, 1tb hard drive, 12gb ram with a self-upgraded AMD Radeon HD 6970m 2gb graphics card in it. The SuperDrive has gone bad on it and at one point I considered yanking it to an SSD drive but I have decided its time to retire this beast of a machine because it is now 9 years old. My new machine is going to be the 5k i7 with 1tb SSD drive and Pro 580 but I am having a few concerns with transferring my data over to the new machine. Should I use the Migration Assistant? An external hard drive or use the cloud? I am leaning towards buying an external hard drive and putting all the apps, music and files I need on it and then sell my iMac back to Apple for credit and buy the new iMac with it. I can live a for a week or two with only my iPad if I need to. Has anybody ever sold back to Apple before or any of those other online places? Would they consider my upgraded graphics card a plus or a minus? Most of them don't seem to offer an option to select a bad SuperDrive as an option for and instead make me choose between works perfectly, partially working and not working which doesn't fit my machine at all, in my opinion, my machine is 99% functional.