Speaker Cables? why all the hype for expensive speaker wire?

Really good (highly accurate/resolving etc.) cables will NOT sound great in a mediocre or average system.  In fact they'll likely make the system sound worse because they will work to expose the weaknesses of the system. The audio system, of which the room is a part, must be relatively matched.  Sometimes dropping in a single, significant upgrade component will deteriorate the sound when the manic audiophile was really looking forward to the breathtaking improvement.  Then, many many thousands of dollars later after said manic person has gone through rounds of upgrading the other components, the sound will have finally noticably improved.  Serious drugs may be required for the breathtaking reaction.

“I think I am hearing things on my records I never heard before and better balance of sound.”

Don’t believe the hype…it’s all relative.  Sounds like you’re happy with the basic cables in your system. Try other cables as you may or stick with you’ve got, at the end of the day; it’s your system, ears and money! 

It's all about system synergy, who each and every component in a system, including every cable, interacts and complements each other.  A cable can sound fantastic in one system, but not as good as another.   That is why you should only deal with companies that allow no-hassle, no restock fee returns if you aren't satisfied.  And get them broken in before the return period is over!!

@tzh21y  more important than what speaker cables you use are what speakers you use, how they are set up for best playback, and how the room is treated if, and where needed.  After those have been optimized, then worry about speaker cables IF you find the sound lacking.  If you love the sound, stay with whatever speaker cable you are using.  If you stop loving the sound, then change speaker cable, or maybe something else.  

It’s voodoo audio that prays on the weaknesses of those who simply want to believe that something so expensive must be effective, yes?