Why is the AKG k518 (LE) so much cheaper in colour?

[johnnyhandsome]

I'm assuming the "LE" just stands for "limited edition", but I'm disconcerted as to how the price varies so much between colours. Is there a difference in sound quality between these limited edition versions and the normal K518 DJ's?

An example of the differences I mean (I know this website to be trustworthy): http://www.play.com/Search.html?sear...string=akg+518

Any help much much appreciated!

PS hello, I'm new here