Are Wang Shoutian's calligraphy works valuable?

Wang Shoutian, 1956 from Anshan, Liaoning, and Jinxiang, Shandong. He is currently a member of China Artists Association, president of China Great Wall Painting and Calligraphy Institute, director of Hainan Artists Association, director of art center and president of Qiongzhou Painting and Calligraphy Institute in Hainan Province. His works are not very expensive, so they are valuable for collection.