If the show has good speakers I think they will still bring in a real crowd. They don't really need to be big names if there are a bunch of them. The better shows MSBA had years back always included presentations by unknown members who were knowledgeable in specific areas. I always enjoyed these the most. I stopped going to Worcester years ago because it never changed, even the speakers. This type of show may see a real decline because it's main focus is expensive trips.
I think the price of custom plugs may come back to the land of reality. I've noted that some of the beachmaster plugs that were selling for 50 or 60 area are now easy to obtain for 30. That is still more then I'm willing to pay but it is a sign of what may be coming.
I allway look at the show as a social thing and a way to beat shipping....lure parts..a fancy painted plug from afterhours or salty...maybe a hat... probly a 100 bucks gone for the day anyway... the only question would be what show probly the biggest or I'll look at who's going to be there...who cares about house sideing and non fishing stuff