son don't forget the fact that San Antonio didn't come out and support the NFL games there either. they didn't come close to selling out any of the three games...
Alamodome maximum capacity for American football -72,000
Game 1 Attendance - 58,688
Game 2 Attendance - 65,562
Game 3 Attendance - 63,747
regardless of Katrina or not New Orleans would never lose the Saints. even in the ty years the fan support has been strong. the year before Katrina when the Saints were a ty 7-9 team they sold out all but one of their home games. nowadays since 2006 the dome has been expanded twice for extra seating (up to 72,000ish now), season tickets literally sellout the entire dome, and the waiting list for season tickets is over 60,000 deep.