[ChrisCinelli]

This my experience with case study in business school:

It obviously depend on the case but, in general, the main advantage of a case study comes from making the learning experience more interactive and involving than the experience of solving a mere, abstract, exercise. It raises the interest like "based on a true story" does in movies.

You learn from a case, but you learn what the case author decided you should learn from it.

A real experience is a lot better. There are ton of pieces of data and things going on at once. Most of them are less relevant. Some situations look not very relevant but they are actually "the difference that make the difference." In a case for the sake of time, the author needs to focus only some aspects and write a plot around them.