Bros,

I'm no audio expert but this is my opinion:

For digital signals, 1 and 0 are transmitted unlike analog signal. Imagine a CAT5 network cable- how much would 100m costs? dirt cheap right? It transmits digital signal up to 100Mbps across up to 100meters- my question is have you ever seen and scenario where a network application crashes due to corrupted signal caused by the cables? VERY VERY rare. In information systems even 1 bit of error would crash a system but in AV a chunck of corrupted signal/data would probably cause a slight hitch in the audio/video output.

In short when it comes to digital cables I would only consider the quality of it's shielding (for optical there's no real need for it) and connectors, offcourse the build quality. I think those RM1k+ HDMI/optical and other digital cables are BS.

For analog signals, yeah the cables do make a difference but how much difference and where is the point of diminishing returns (e.g. would an RM1k/meter cable be much more better than an RM50/meter cable) is still being debated by audiophiles, techies and sceptics- I do not want to go there.