Last week I happened to be in the Southdale Shopping Center, near Edina, Minn., in the middle of a weekday afternoon, and the place was a ghost town. Seven miles east, on the site of old Met Stadium, you have the Mall of America, which still brings in (and takes away) the crowds. The recession, and the digitalization of business and culture, hasn't helped Southdale, either. Even its movie theater was pretty empty.