Film School or Not?

I recently did an MA in creative writing and must say that it was a significant waste of time. 90% of the feedback was from other students who knew as little or less about writing than I did. I also taught screenwriting at various colleges over the years and found that the colleagues who had no credible industry experience did more harm than good. Anyone had a different or similar experience? Are these things worth the colossal amount of money they cost and does anyone in the industry care?