From the information in the thread [
http://www.net54baseball.com/showthr...=114661&page=2 ]
to which Rob D. (post #7) provided a link, it seems like floorspace is a primary criterion -- minimum 300,000 square feet,
ideally 400,000+. That is some serious acreage. Really, how many towns have a convention center or exhibition hall of that size?