Hi, this is my first post in this great community. I've been reading the articles and some random threads since weeks ago.
Finally I've decided to get a "good" mouse, WMO is the one I'm looking for.

I'm planning to get a WMO from Amazon or ebay but can't decide if get a 2002-2004 or a 2011 model.


Is there any technical difference between those models?

I suppose the material they are made can be slightly different, maybe the colors and other non-relevant stuff, but what about factors that affects the in-game performance?

Thanks in advance.