What they fought for...

They fought for tourism. From "Officials hope to get jump-start on tourism money:"

Though the 150th anniversary of the Civil War’s start is more than four years away, officials in North Georgia have started planning for the event in hopes of drawing tourists to the area.

"The importance (of the anniversary) is the tourism aspect," Catoosa County Historian and County Commission Chairman Bill Clark said. "If we get ready, it will be quite a tourist event. Tourists spend a lot of money."

Emphasis added. The story also notes,

Jim Ogden, historian with the Chickamauga and Chattanooga National Military Park said that in addition to the economic impact the anniversary is historically significant.