Vintage DIN phono cables, any good?

The question is about old DIN tonearm phono cables for the top of the line vintage Japanese tonearms. 
I wonder how good those old cables are compared to the mid priced new cables ?

For example an old Audio Craft, SAEC, Fidelity Research, SONY  cables made for their top of the line tonearms are good? It's easy to replace an old RCA connectors, but what about the cables? Some of them are silver and must be a good quality. 

Any thoughts? 
Thanks