Bad cables make a bigger difference than good cables, and beyond a certain level of build and materials quality, good cable make very little relative difference compared to other huge factors like the quality of the source component and the acoustic qualities of the room itself.
Correcting room acoustic deficiencies yields vastly superior sonic benefits that anyone can usually hear right away. So if you purchase a well made pair of cables and spend a few hundred dollars on them, or a few thousand dollars on them, you won’t hear "better" or "worse" sound, you’ll hear subtle differences.
There is a huge placebo effect with things like cables (assuming the cables are appropriate for the gear you’re connecting them to), and another huge potential for good old confirmation bias. If you like what you hear, then great, keep them and move on, but if you think that more money equals better sonics, you’re most likely just fooling yourself. Beyond good build and materials quality there is no correlation between price and sound quality.
I once placed a bet that no one could rank a series of cables by price in a controlled setting where they had no idea which set they were actually listening to. This has been tried before-- can’t be done once you eliminate the confirmation bias. So buy what you want and like what you like, but the wild claims made by cablemakers are about as reliable as those made by any other industry loaded with snake-oil salesmen-- vitamins and supplements come to mind-- huge claims constantly made, and a growing body of hard scientific evidence that almost all of those claims just do not hold up when tested with any degree of scientific rigour.
There are usually better ways to make your system sound better than fussing endlessly with cables-- unless you’re using some really bad quality or outright defective cables-- the differences will be akin to trying two really good cabernets -- you go with what tastes the best to you, hopefully, and not just blindly assume the more expensive one is necessarily the better one. "Better" is subjective, NOT objective.
I should also footnote this comment by mentioning the laughably obscene profit margins enjoyed by many cable makers that sell their products in the four and five figure price ranges. P.T. Barnum personified.