@elizabeth Exaggerating? :-) Maybe a little, but there are some who do believe that a multi $K cord is what it takes. I know better!
A $200.00 power cord, I can almost understand. For about $60.00, I can build a very, very good cable that would deliver clean, unrestricted power from a wall socket or conditioner, to any 120V, SS or tube amplifier or component and it would last a lifetime. Not everyone has the time, understanding or ability to build good cords or cables, so I can believe that $200.00, for some, to get a real good power cord, might not be unreasonable.
I also know that there are a good many, cheaply made, outlet receptacles, out there (in fact, some I wouldn't want to plug my toaster into) but companies like Hubbell and Leviton have been making industrial and hospital grade receptacles for a very long time - using durable, lossless, contact materials, quality shell materials and have a history of sound design and build. I'm not disputing that there are other good companies out there, who make fine outlet receptacles, but beyond what has been proven to provide a tight, durable lossless, connection and able to hold up to many years of use without loosing the integrity of that connection - everything else is smoke and mirrors...Jim