You are correct I was asking the question, not making a statement. I have never attended a mainland show for the very reasons you mentioned and probably never will. Hong Kong is the ideal venue for commerce and you don't have to worry about customs arbitrarily taking your coins away or holding them ransom until you pay some duty.
It is nice to see young (under 50) attend the shows in China.
Agree with you R3 the US shows are a waste of time, I rarely bring any inventory to display and anything good is almost always sold before the show starts. I no longer view shows as a marketplace to do business, but rather socialize with dealer and collectors. Online auctions will take over the industry in the next 20 years, if it hasn't already.