Here's a
LINK to an article in Salon magazine about the resurgence of downtown Asheville, North Carolina. We stayed in downtown Asheville with the kids last winter and found a thriving little City with great restaurants and night life. The article explains the math, comparing tax revenue from the City's Wal-Mart to more appropriate downtown development on a per acre basis.
Downtown Asheville, NC - The buildings close to the street generate substantially more tax revenue than the suburban-form businesses, including those that tear into the urban fabric, on a per acre basis.