Cord covers remind me of the scrunchies that used to be popular as ponytail holders. Wasn't there a Sex In The City episode about the uncool-ness of scrunchies? Are cord covers equally uncool?
Cord covers tend to be suited for more traditional decor but even then they seem a bit much to me. What is wrong with seeing the chain of a chandelier? Chains are even produced in different styles and colors to suit your decor best. I also did a little research and found rayon covered lamp cord that would look nicer than a plain cord but less fussy than a scrunchie style cord cover. Imagine all the dust those collect anyway!
If you want to experiment with a cord cover, check out the charcoal and cocoa versions on sale for $9 from Brocade Home!