It can enhance the value of your degree; Study abroad adds a new perspective to studies. Seeing things from another point of view will help to develop your analytical and critical thinking skills. You can demonstrate these skills by participating in a research project, writing a brochure, publishing an article etc.
It enhances employment opportunities. International career does not happen itself. Study abroad is a way to gain overpowering career advantage.
Study abroad is also the optimal way to learn a language. There is no better way, and then throwing in the culture of the country student wants to learn.
Study abroad allows you get to know another culture first-hand and expand your worldview.
It helps you to learn about yourself. By leaving "safe zone" students get a wonderful chance for their personal development. The self-confidence, maturity and interpersonal skills are increasing.
Finally, study abroad affords you the opportunity to make friends around the world, and provides the opportunity to travel.