I agree that it doesn't matter to the buyer if the counterfeit is just as good. The trouble is that there's a huge middle ground between "just as good" and "obviously crap the moment you pull it out of the box." If a cable frays into uselessness a year after you buy it, or your power adapter is terribly inefficient, or some bit of shoddy construction starts a fire, how are you to know it's because it's a counterfeit and not just because you got a bad product from Apple? Even if you could know, it's too late, they already have your money.
