Is it worth to seek a foreign degree or foreign qualification?

It depends on individual and demands on work. At some countries, some work force prefers foreign degrees. It is valuated there. If so, then it is good

When you go to another place or country to study, you are not only seeking a degree but also a level of knowledge. Some universities or Institutes are known worldwide for their excellence. But if all you want is a piece of paper that says you are a Master or a PhD, then maybe you should seek the easiest and less expensive way. Anyway, there are scholarships in every country and also abroad for the best people.