one thing i have always thought, and i don't think anyone mentioned it above, is that perhaps dylan is shy. that's odd for a performer, but possibly true. in other words, he might like writing and singing songs, but doing it in front of people might be daunting. and could explain why the studio albums are good, and live performances are sometimes lackluster.

also... someone said: "We criticized him when he went electric. We got on his back when he went and did the spiritual songs.   And here he is again, doing the things he wants to do..."

And leave us not forget the Victoria's Secret commercial that featured not only a song, but also featured Bob himself. Explain that. Sellout? Self effacing? Lost a bet?