so I bought a boxed ms-dos copy of doom 2 at half price books years ago. about 2 years ago I went to quake con and saw the 20 years of ID conference. I decided to bring my copy of doom 2 to see if I could get it signed. well waddya know, they were doing a signing at the end of the conference. I brought Carmack my copy of DOOM 2 and hes like damn, I havent seen that in a while, and was pleasantly suprised, and happy to sign it. it is signed by John Carmack, John Romero, and Kevin Cloud (almost positive) Well I have run into financial issues and im trying to find out what this item is worth, if anything. not sure how big the demand is for DOOM 2 but I thought id ask here. here is a picture of it http://oi42.tinypic.com/23ke03l.jpg link is very safe for work.