normally on geekhack keyboards fetch more, but for Razers, the opposite holds true.
I believe your Blackwidow can easily sell over $70 on ebay. On this site, you'll be lucky to sell it for $50.
The public loathing for Razers on geekhack always amuses me. I think that deep down, most of the hate comes from the fact that Razers are not great modding material because of their nonstandard casing, nonstandard keycaps and layout, proprietary controller, awkward cable, etc.