Hi everyone. I just purchased a second-hand 2014 iMac 27" retina display w/ fusion drive. How long do you think it will be before this computer is outdated? 5 years? Also, is the fusion drive replaceable in/when it breaks? I was hesitant to purchase this machine given my past history with mechanical hard drives, but I was ultimately persuaded to purchase it. Also, I consider myself a light user (web browsing, Logic Pro) but wanted to add additional RAM since the option is available to upgrade from 8GB to 32GB. I see on eBay, for example, people selling 8GB of RAM from their iMac, presumably wanting to upgrade as I do. Can I purchase this "Apple" RAM (4+4) to add to my iMac to get to 16GB of RAM (4+4+4+4)? It seems like a cost effective option, and wouldn't necessitate me throwing away the 8GB of RAM that is currently in the machine. Thanks to everyone for any input!