In term of cables, I am not sure of which specific cables you are looking for.
It is possible for a cheaper
done right cables to out perform the more expensive one. But the problem here is not the cables, it is your system and yourself. Are you confident that your cables is performing to your best interests that you can not observe any negativities from it ? If you are sure, then when you have a chance, try another cables, and see if it can give any cents worth of differences.
What I am saying is that, enjoy the music, understand yourself and preferences, stay true to it. There are possible that cheaper things and older things can outperform newer things and expensive things, and that is in every hobby, specifically this hobby