I've attended six Nationals: 1991 Anaheim, 1999 Atlanta, and the last four Baltimore, Chicago, Cleveland, Chicago.
I'm probably not going to attend this year in AC. Flying into CLE BWI and ORD has been a breeze, with easy to catch free or low cost shuttles from the airport to my hotel. In Baltimore I walked to the venue. In Chicago, the hotel provided a free shuttle to/from the show. Atlantic City just sounds like a pain.
From the National Sports Collectors Convention website
http://nsccshow.com "About the National"
"Seeking to involve collectors from around the country, founders of the National stipulated that the event should move around the country to insure all collectors and exhibitors could participate."
Dealers need to vote to move the location around the country some, but Atlantic City wasn't the correct vote for me. I would have rather flown out to Anaheim.
Larry