Anyone who tells you that cables will magically transform your system is smoking crack.I think of it from a different perspective. It is not so much that a cable can magically transform a system but rather that so many cables out there can instantly destroy the capabilities of a top-tier system.
Many of the cables recommended here are indeed good. But when you get to the top tier performing systems where the focus is midrange textures, natural decays, portrayal of space, etc., such cables quickly show their subtractive nature.