@William said:
Point 3 of this last post is a very good reason, because it's true you get a more "intimate" view of the music than any other kind of score study. The only thing better is orchestral playing or actually conducting it and hearing where all the problems are and how everything is put together. So MIDI is a tremendous learning tool in this sense especially when combined with such detailed samples as VSL.
This is exactly right. Unless someone knows what an orchestra actually sounds like they will never be able to programme orchestral music successfully, even if they have the best sample library in the world. This is why many composers use orchestrators, as they can get a reasonable result with MIDI that has no chance of sounding good in the real world. Making a "real" orchestration sound good with MIDI is much more difficult, and therefore a very good learning process.
DG