Title says it all, I was wondering if these things are to be trusted in general. I was looking at someone who has sold over 400 posters on ebay with largely positive feedback--but some seem really cheap-- and I'm wondering if they're legitimate autographs or not. My friend was saying how he just got an autographed Fight Club poster (Norton and Pitt autos) for like 75 bucks with a COA and everything. Now I have seen similar autographed items in Casinos and similar collectibles places and that same item would have easily fetched 4 or 5 hundred bucks. Is this because there is a good chance that, even with a COA and a lot of positive feedback, these autographs are fake? Thanks!