A customer wants to insure his two paintings, and we know what they currently sell for at the artist's gallery, but should he be insuring them for more? When watching Antiques Roadshow, I've seen appraisers say the following. My paraphrase goes like this, 'In a retail setting or at auction, this painting would likely sell for $15,000.00. So, I'd suggest insuring it for $20,000.' I'm curious as to why this is, and would appreciate any replies. Thanks.