David Dawes : Ding Dong that fetched $ 2.2 million is the latest in big deals on Chinese art . Art sale fans ' hopes rekindled , he says , but dreams elusive ( ' ` ` Antiques Roadshow '' ) It looks pretty much like any other nickel to most of us , and there may have been others in circulation . He says key to value is supply and demand , but calculation varies so keep trying . Dawes : Chinese art value grows , especially in China , as society and art market open up .
David Dawes : Ding Dong that fetched $ 2.2 million is the latest in big deals on Chinese art . Art sale fans ' hopes rekindled , he says , but dreams elusive ( ' ` ` Antiques Roadshow '' ) He says key to value is supply and demand , but calculation varies so keep trying . Dawes : Chinese art value grows , especially in China , as society and art market open up .