Is China calligrapher Cai valuable?

Does the subject want to ask: "Is the work of China calligrapher Cai valuable?" ? Worth some money. By the end of June, 2022, the price of Cai's works was 2,000 yuan per square foot, which was more valuable and expensive. Cai, 1958, born in Qishan, Shaanxi, Han nationality. 1enlisted in September, 1976. He was a lecturer in a university of the Air Force and held the rank of senior colonel in the Air Force. Graduated from the Chinese Department of Capital Normal University with a bachelor's degree in Chinese language and literature; China graduated from the Party School of Beijing Municipal Committee with a bachelor's degree in calligraphy.