What is the largest trade show in North America?  When the final, audited tally came in, the 2009 Consumer Electronics Show actually had 113,085 attendees, more than the previously estimated 110,000 attendees.  Held in Las Vegas from January 8 to 11, 2009, CES had 2,700 exhibitors, and even 300 new exhibitors.   

Read more about it at the Successful Meetings website here.