He is insane for asking that price, here is the bluebook
http://www.bicyclebluebook.com/Searc...x=20000&type=0
As CDR above said, you can get something new with a warranty for not much more. Here is a bike with current 105 for $799. the 105 on that bike is really old.
http://www.performancebike.com/bikes...400315__400315
There is a performance store in Atlanta, Buford, Marietta, and Roswell.