Power cords at ridiculous prices?

Seems to me there's no shortage of "black magic" out there, people spending $1000 on power cords? If the equipment you own is well designed with hefty power supplies and adequate capacitive filtering on-board, the grunge from the AC lines will be dealt with. I'm not discounting upgrading stock cords with something of a little better quality, but it seems to me spending the equivalent of a mortgage payment, on a piece of wire, makes us audiophiles the subject of ridicule by any reasonable person. Okay, I'll stand back now and take my lumps....