I largely agree with you, but, I feel that the in class presentations, when recorded well, are more engaging. Personal opinion being what it is for me I find i

I largely agree with you, but, I feel that the in class presentations, when recorded well, are more engaging. Personal opinion being what it is for me I find it far easier to listen to Professor Sahami's recorded lessons (CS 106A) for an hour than I do Prof. Widom's into to DB classes. This is not intended as a slight to any person at Stanford. The real difference comes down to watching someone engage an audience and some one speaking to a camera. Strictly my opinion based on a very small sample pool.