One thing I'd add from last year's post: Be sure to check out the Olympic area if they have it again. You will see some stuff you cannot imagine at a card show: Europeans, thin people and women. The elderly German gentleman reminiscing about the good old days of the 1936 Olympics was...
Plus you might get to say hello to some Olympic athletes because they had a table there right on the show floor and they actually spoke to fans. Not quite the same as Willie Mays ignoring you while he rolls your baseball to the handlers...