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

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.