Can't go buy what people are asking for on ebay. They are just fishing and hoping someone with too much money buys it. I ran into this recently when I came across all my older games I had I storage. That price charting website came in handy and the ones I sold that were CIB showed up shortly after they sold so they do a good job keeping it up to date. Start the auction at $1 but put a high reserve on it. That will let you know what people are willing to pay.