up to you.. I am not getting one right now.. money's tight or maybe I would.
But if they say new with warranty on e-bay.. make sure you got your warranty and everything..
here's the home page
http://www.razerzone.com/
you can try and contact them. but good luck. kind of makes you wonder if the warranty would be any good anyways when I doubt anyone will reply to you. never replied to me..
they used to seel these mice in stores.. but not enough people baught them so they kind of ran out of money or something.