Hi, I guess, HDD is not user upgradable...right ? in iMac 2012 ? so, how much Apple charges to replace HDD ? just in case ? $300 -$400 ?? Then, i think i would be worth it to get SSD instead...so u get faster performance, and chances are you might not need to replace/upgrade it in 3-5 years... There are more chances that HDD gets fails in 1-2 years.. Dont no, even if Apple covers HDD failures within the 1st year of warranty period.. what do you say ?