Expansion is simple in a star topology, because stations are added outward from a central point.
Each link is independent of the others, so changes and rearrangements affect only those links actually being changed. Such a topology makes troubleshooting and maintenance easy, since problems can be localized while the reports of those problems can be centralized. The star configuration is versatile, because it can be reconfigured easily to other topologies, such as ring or bus, needed by other applications. While keeping your equipment and wiring in a star arrangement, you can integrate additional topologies simply by adjusting the circuits at administration points. An example would be a copper backbone element that is changed to add fiber for greater bandwidth.