Everyone sees art in a different light. An artist piece who enjoys art and isn't just trying to make money will have some meaning. Maybe reminding him/her of happy times or a special time in their lives. I knew an artist who basically shit posted churning out a"painting"every 30 minutes or so. I can't imagine he started out like that and probably didn't enjoy it in the end.
Perhaps it was his commentary on the art industry... :D
He was one of those you see in hotel rooms. Look the same with a splash of different colour. Some were fairly decent but you had to hunt quite hard though.