Selling my 9800GTX for $50 -- good price?

[JamesPromIII]

Hi i'm selling my EVGA 9800gtx+ and someone made me an offer for $50. Is it a good deal? http://www.newegg.com/Product/Product.aspx?Item=N82E16814130339 here is the website with the specs.

 

[klepto12]

i would think you could get $75 for it.