Personally, I often wonder why we spend big $$$ on components - CDP, amp, preamp, speakers, etc., and we never recognize that the improvement in listening experience we find is directly related to the high quality of the circuitry and signal path of those components. Yet, after spending major bucks on those components, we naively connect one to the other with crap interconnects, speaker cables and power cables.
Think about it . . . I buy a $2500 CD player for the way it reproduces the source signal. I connect it to down-the-line components for which I've probably spent way more bucks, for the way they conduct the signal. But I spend $100 bucks to get the signal from one outstanding piece of gear to the other, and then wonder why I'm not getting what I want.
I'm a firm believer that connectivity is the secret to the truly exceptional sounding setup. Put a $X,000.00 signal through a $100 dollar interconnect or speaker cable and all you have is $100 dollar sound.
Don't short-change the value of high quality interconnects and speaker cables, and the value that they actually bring to the joy we share.