If you are spending big money for any cable in your living room you are wasting that money, especially if that cable carries digital signal. With digital it’s either all there or not, there’s no improving the quality of the transmission.
With analog cables (speaker, RCA, coaxial, etc.) there’s something to be said about quality of shielding and plugs, but you can still buy a well-made analog cable for just a few bucks more than the cheap ones. With analog cables it’s more about interference from other cables and electrical sources.