Some of us know some very particular things about China. I wonder what other kinds of information we know?
I'm not an expert on this matter, but antiques aren't a big thing in HK. HK people tend to have smaller homes so they don't have space to display the antiques. HKers also tend to have disposable incomes so they can afford the latest and greatest. Also, there are lots of reproductions from the Mainland that can be had for cheap, so even less incentive to buy real antiques.
European antiques must be even more niche than Chinese antiques I guess.