There is a lack of highly skilled workers, including actors and crew. You're only capable of production at a certain level. Another important aspect of film school is landing students jobs when they get out. Most institutions have coordinators who try to place graduates in production and post-production positions. But, as Stover says, it can be difficult.
Internships are the best way.
We also keep alumni connected through web sites and personal contacts. If the traditional film school isn't for you, there are alternatives. On a similar scale is Writers Boot Camp, located in Los Angeles, New York, San Francisco, and Chicago. Students here learn tools and structure at the same time. Even large universities are now offering alternative programs.