@Flim - don't worry about the issue we mentioned since you'd be getting a newer model. Those were 2011 and older models... I haven't heard of a 2012 and up model which had the same issue (i.e. the thinner iMacs) - but don't take my word for this because I haven't looked at this issue for a while now. My 5K iMac is still relatively new, I've just had it for a few months so I couldn't really tell.