AOII's Convention that I attended:
New York Marriott Marquis 1997 (Centennial Celebration)
Marriott Marquis NYC
Norfolk Marriott Waterside 2003
Waterside Marriott
Atlanta Marriott Marquis 2005, June 25-July 3, 2005
Atlanta Marriott
I'm waiting for them to have one in Memphis or New Orleans! That would be so awesome! I know they have had one or two in New Orleans already!