One thing I learned with vintage/collector car appraisals is that the price they give you is not necessarily the price you would get to sell it. The appraisers often inflate the price so that in case of a loss you can negotiate with the insurance company a bit and still come out with enough to buy another. Another thing is that all appraisers are not created equal. Some are better than others. Some just want to make the owner happy so they pay them. Some just don't know what they are doing. Because you have an appraisal, doesn't mean its a good one. Anyone can appraise things.