No. Wrong. Only way to measure if product has failed is to see it sales and feedback from device owners. Only one who sees these statistics is the seller itself. So you can only make vagues guesses how well something has succeed. And of course the problem itself is that how to measure and what is the scale itself. If you try to make statement about failure then you need shitload of references and statistics from 3rd party sellers. Without those you are just yelling fool who can wear clown suit (like most of tech. bloggers and commentators in blogs, just bunch of fools who think that their opinion without arguments or references is worth something) :| Only thing you can say is that device has failed FOR YOU. Big difference!