My experience has been different. Yes, most drives that survive the first month seem to last for years. But after 3 years you never really know. That is when I've had smart errors start popping up leading to replacing the drive. Wd greens, Seagate barracuda, hgst drives in the 3-8 year range have all exhibited this. Not all my drives, but all those brands that Ive owned at one point or another.