The Baltimore Convention Center, however, completed its last renovation in 1997, more recently than Camden Yards was built, and it is already considered uncompetitive. Let's compare the two facilities: in 2010, the Baltimore Convention Center only drew 389,000 people. That same year, 1.7 million people flocked to Camden Yards. Meanwhile, the Convention Center's total cost was about $202 million. In short, the Convention Center draws 1.3 million fewer visitors to Baltimore each year and cost twice as much to build.