This is the sort of thing Hasbro should do for the 30th Anniversary at BotCon next year, which would have required it to be at Rhode Island for them to be able to display the contents of their vaults without costing too much in transport.
The last time we had a fairly complete collection on display was BotCon 2004, which was done more for the "finale" BotCon than the 20th Anniversary of Transformers.
If this Chinese (event/convention?) was announced several months ago instead of just two months before it occurred, I just might have considered going to this for just a couple days... and it would have been worth it to see all that in person.