I have an old fanless iMac in my bedroom, and, until I had it downloading files when I was trying to sleep, I never realized how loud it is. Why? The spinning hard drive noise is a high-pitched whine with occasional access noises that is really quite annoying. By contrast, the fan noise of the eMac really is, well, soothing! The eMac HD never makes any noise (or maybe it's drowned out). The fan noise is a "white noise" that is completely unobjectionable, IMO. Plus a little fan noise can help drown out objectionable background noises, like the TV downstairs.