Sotheby's Wine department has produced their U.S. Market Review for 2007-2008 in a nice printed newsletter which I received a few days ago. To me, the most interesting page was one devoted to Asian buying activity titled "Duty Free Asian buyers multiply." I've reproduced below a short table from the article which caught my attention:

Whether this increased activity is driven by the elimination of Hong Kong and Macau duties, booming Asian economies, a weak U.S. dollar, or a combination of all of the above, it's no surprise that most major auction houses have already launched, or will launch, Hong Kong auctions.