You missed one salient point, however. The fact that two months after you buy your pc it will, on average, take you twenty minutes to boot it up because of all the viruses beseiging it.
I've had a mac (was stolen) and never had such a problem. PCs suck. Once more, within a couple months the pc will invariably slow down so significantly that the "work horse" that once was is no more - and there ain't a thing you can do about it.