Libraries need publishers of all kinds of media. And there is a vast after-sale market of patrons who buy products after seeing them in libraries.
Traffic is high.
And several of the meetings offer access to specific kinds of libraries and the markets they represent. In a comprehensive marketing strategy, state and regional conferences are the complement to the national meetings. And most of them do not attend the national shows. With fewer titles to see and not as many exhibits to visit, each receives more attention. And the most popular exhibit is CBE's, with its comfortable setting and varied collection attracting regulars to the display each year.