Yes, master's degrees are good quality and fun, because they allow people to study subjects they are interested in. Most master's degree programs can be tailored to meet the interest of the person taking the courses. There are a wide variety of subjects available to study, and the person pursuing the degree can find something that meets their interests.
If people were successful at their jobs, they would not need more education. Often, people get a master's degree because they don't want to leave school and they don't know what to do with their lives. Most Human Resources departments prefer experience to higher education. It is hard to find an advanced degree that actually benefits students.