I like the Net54 dinner each night too.
How about a shuttle on call to take us from the show entrance to the McDonalds
A serious idea that might work is to group different sellers of cards together in each part of the show. Tables 1-300 would vintage cards, tables 301-500 modern cards, tables 501-600 autographs, tables 601-650 auction houses, tables 651-655 grading companies, etc,... The seller might have some new stuff, but if they sell predominently vintage cards, then put them in that section. Each National, switch it around so one year the the vintage sellers are tables 1-300, the next year they're at 800-1000.