Comment Let's be specific here (Score 2) 391
The reason that the listeners could not hear a difference is not because the cables did not differ in quality, but because Ethernet is digital and has the capabilities of error correction and retransmit. The chip might have extra signal processing as well, to do noise reduction for example. In the test, these kind of characteristics were enough to fully compensate for the flaws of the crusty cable.
There's still many scenarios in which you can benefit from better EMI shielding and conductivity, even when talking about a digital application.