I keep seeing people mention, in passing, you should buy 'good quality' phono cable. What does this really mean? I see them going for a vast range of prices. At internet dealers like hificables one of the cheapest is £30 for a meter or £45 for 2 meters (QED Qunex two phono pair). This sounds a lot to me, but I see others at even higher prices. Where do we hit diminishing returns? Is price a good indicator of quality, and if so what should I aim for for my midrange system? Is there a DIY by-the-metre option? Any recommendations?