The entrance of Otto Schultz upon the scene assured Dakota City's continued existence. In the 1920s he operated a small food stand in the Dakota City Park and used to take lunches out to nearby farms to sell.

In 1932, Schultz had saved enough to open a garage and then a Chrysler-Plymouth dealership, (see photo). He began buying lots on the north side of Main Street, at $100 per lot, and built a total of seven brick buildings. Because of Otto Schultz's investments in time and money, Dakota City survived.

Roller Country Skating Rink is located at 403 Main Street. Otto Schultz's auto dealership was there first. Jim and Marcia Lenning's Sales and Service was there for a while in front, and Head Start was in the back. Then Bill Patterson and his wife operated a ceramic shop in the back.

In 1946, Schultz built what he wanted to be a theater. It turned out to be the Star Ballroom, a very popular dance hall for two decades. Here Louis Armstrong, Lawrence Welk and Stan Kenton played to enthusiastic audiences from all over the area.

A bowling alley, operated by Max Gibson, was in the basement in the 1950s.

In 1975, the Al Hadar family bought the ballroom. The last dance was held in 1992. Dan Dodgen ran a bar and dance hall after Al. It was also called the Dog House. Melinda Witzke purchased the building in 1997 and it is now her school of dance.