Are Liu's words collectible?

Hello, is Liu's handwriting collectible? Liu's handwriting is very collectible. Liu's words can be sold to around 500 yuan now, and the price will be higher after a few years' collection. Therefore, Liu's ci is very collectible. Liu, born in 1950, was born in Cang County, Hebei Province. Member of China Calligraphers Association, Member of Hebei Artists Association, Member of Original Rating Committee of Hebei Calligraphers Association, Consultant of Cangzhou Chinese Painting Freehand Art Research Association, Honorary President of Cangzhou Collectors Association, Honorary Dean of Canghai Painting and Calligraphy Institute, Consultant of Cangxian Artists Association. He used to be the vice chairman of Cangzhou Calligraphers Association and the chairman of Cangxian Calligraphers Association.