They are the best free art exhibits in town. In addition to Christie's impressionist and contemporary art display at the Grand Hyatt, rival auction house Sotheby's is showing its spring auction items next door at Hall 2B of the Convention and Exhibition Centre. But its emphasis is on the booming market for contemporary Chinese paintings. One person who has seen the market erupt first-hand is Sotheby's Asia managing director Henry Howard-Sneyd. That's because he's usually the auctioneer on stage pushing up the bids. 'When I started here seven years ago, the turnover was about US$60 million. Last year it was US$240 million. The market was just undervalued, so now it's catching up,' he said. However, this will also be the last auction for Howard-Sneyd (below) in Hong Kong. Having just been promoted, this summer he'll be moving to an executive position in New York. 'This is it, but it's time for a new challenge. I'll miss the people I work with here and,' he says, surveying the large, recently-constructed hall around him, 'I'll miss the ability to put up all this in three days. 'You can't do that anywhere else.'