Personally, coming from a background as an audio engineer, I normally buy Mogami interconnects since their build quality is fantastic and most studios use their cables.
That being said, I have no doubt that these cables can get the job done.
If the cables in your system cost as much as used Corvette, wow, have you wasted a ton of money for nothing!
Every review I've ever read of any cable of any type, firstly, states how much better the system sounded with it and, secondly, never offered any proof that it was true.
Ever heard of preconception bias?