Personally, I could never really hear any difference between $2 or $99 cables.
I use mostly what ever I have on hand, mostly, if its a decent system, I'll grab some higher end automotive audio cables that i've got. They were something they sold at a shop I worked at in the late 90's. 14k gold plated ends with 16ga copper conductors. I forget the brand, but they were the mid grade cable there.
The had three grades. When they closed up suddenly, (the owner died), we were asked to stay till the last day the following week to get the last few jobs completed, I was the only one who stayed. I sort of knew there'd be pay issues so I paid my self as we went and when the last day came, they told me to toss everything that was left in the dumpster, lock the keys in the building and go home. That dumpster had a tailgate that looked a lot like the one on my truck.
The sales pitch we got from the sales rep touted that they were being made by Nippondenso, but they were branded Audio Quest. They were getting big money for them back then. To me, their too heavy and don't lay well off the back of the preamp.
I have a lifetime supply of those 3ft connectors, in both the mid and lower grade cables, but both are supposedly 14k gold plated. The mid grade is just thicker insulated with a RF shielding as well. The cheaper cables are just 16ga parallel cable with molded ends. Strength wise, you could probably tow a car with them.
I can't tell the difference in any of them, including the high end Nakamichi set I've got.