The print you described is likely a commemorative print that was produced during or after the exposition. These prints often featured images of the exposition grounds, the exhibits, and other scenes related to the event. They were popular souvenirs and were often sold to fair attendees and collectors.
The value of a Centennial Exposition print can vary depending on a number of factors, including the artist, the size and quality of the print, and the subject matter depicted. Some prints can be quite valuable, while others may be worth only a few hundred dollars or less.
As for who would want a Centennial Exposition print, there are a few potential markets for these items. Collectors of historical prints and ephemera may be interested in acquiring a print, as well as individuals with an interest in the history of the United States or the Centennial Exposition itself. Additionally, museums and historical societies may be interested in acquiring such a print for their collections.