See how hard it is to take pictures of things you own? Its harder to take pics of something you don't own. When you're talking big ticket items then you definitely need photos. $50 is expensive to some people and it's simple to screw someone over because everyone wants money up front for items sold. Hell, go to McD's and order a sandwich and tell them you're not going to pay for it until its in your hands. Ever get your order at a drive-thru, get home and something is missing? Joe Pesche said it best "The **** you at the drive-thru!"