I believe Dylan is following his muse, plain and simple. And why wouldn't he? The muse made him famous at the ripe old age of 22. The muse gave him -- and us -- "Blowin' in the Wind" and "Like a Rolling Stone" and "Tangled Up in Blue" and "Things Done Changed," to name just a few of the many, many timeless songs he has composed. If the muse is telling him to play night after night, who is he to say, "Aw, thanks for the invitation, but there's a dinner party in Malibu I don't want to miss"?