I saw an article where a guy did some double blind testing with some audiophiles. They couldn't tell the difference between some really expensive monster cables and a coat hanger that the guy had soldered rca ends on. But, Your Mileage May Vary. I have always believed you should get something of decent quality, and by that I mean sturdy connections and decent RF shielding. I have heard a huge difference in cables due to the RF shielding being degraded. If that happens, you hear white noise and hissing. And in one particular case, a really high-pitched sound that felt like my ears were ringing and I was having a migraine.
But once again, YMMV. If you want to spend money on them, go right ahead.
But once again, YMMV. If you want to spend money on them, go right ahead.