it is according to Crains Chicago Business
"The Cubs and Wrigley Field are so intertwined. The whole is greater than the sum of its parts," says a member of one bidding group who requested anonymity because of Major League Baseball's sensitivity about the sale process. "Splitting them absolutely diminishes the value of the team and my interest level."
See the Cubs 2008 schedule at http://ignarski.tripod.com/sched2008.html