What will 6 feet do, now?

OK, here's the deal. I'm happy mind you. I have all my electronics plugged into my Audio Magic Stealth. All the cables are Lat International including the one going from my hospital grade outlet to my Stealth. I had all these Lat power cords for a few years. My Stealth is 6 months old, purchased new. I simply love what the Stealth has done for my system. Now to the question: What can $1000 power cords or the like do to my electric, coming from my Stealth, that hasn't happened already. The "purified" electric coming out of the Stealth can still be improved with a killer power cord? How's that? Here's the typical answer. "I don't know, but it does." Please, somebody give me more. Thanks in advance.
warren