Value of (lightly damaged) Uncharted 2 Fortune Hunter's Edition

[BAD-WAYNE]

Hey guy's, I'm a longtime (over 20 years) collector with a massive collection but I tend to keep to myself so I apologize for not being very active here...Yesterday I purchased a copy of the Uncharted 2 Fortune Hunter's Edition off EBAY for $1500. It was missing the guide but it's really just the standard retail guide which I already have so no sweat. Today the seller disclosed a small crease in the box on the interior where the dagger is stored. He is willing to issue a partial refund if I still want it or a full refund. My question is this, how much do you think its worth with the damage? As I said, I paid $1500 for it but he is willing to negotiate at this point.

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