Well people have choices, but putting up with it is probably the most logical, I spoke to Apple they heard the sound so I was not saying don't complain, you just assumed that. I listened to others, more make the noise than do not, and getting into a loop sending macs back can lead to other issues maybe, we all have the right to say what we like within reason, and do what we like about issues, to most I would say if it bugs you beyond belief try for a new one, but if your machine works well, has no other issues, and since the noise is recognised for Seagate models as well as some Hitachi drives, the chances are you will get a noisy one back, so that's why I say put up with it, get apple care and stop worrying, I have a right to say what I feel since I own a machine that does it, well in fact two, but Apple have heard from me saying that its annoying and they say the chances are you will get another that will make the same sound and tbh I cannot be bothered as I have had iMacs with other issues that are far worse. Time to move on, life's to short 😉