Actually our convention center is pretty small compared to others. It's 881,000 square feet. San Antonio's is 1.3 million and they're about to expand it further and add another hotel down the street.
The first number is exhibit space the second is total space.
Dallas Convention Center Dallas, Texas 1,000,000 sq ft (93,000 m2) 2,000,000 sq ft (190,000 m2)
George R. Brown Convention Center Houston, Texas 853,000 sq ft (79,200 m2) 1,800,000 sq ft (170,000 m2)
Reliant Center Houston, Texas 706,000 sq ft (65,600 m2) 1,400,000 sq ft (130,000 m2)
Henry B. Gonzalez Convention Center San Antonio, Texas 440,000 sq ft (41,000 m2) 1,300,000 sq ft (120,000 m2)
Austin Convention Center Austin, Texas 246,092 sq ft (22,862.7 m2) 881,400 sq ft (81,880 m2)
http://en.wikipedia.org/wiki/List_of...bition_centers