Self Portrait continued what Nashville Skyline had begun, the lowering of expectations. No one could have been expected to continue at the level of Bringing It All Back Home , Highway 61 Revisited, Blonde on Blonde, John Wesley Harding, and Dylan chose not to try. I agree Skyline and Portrait are enjoyable on their own terms, but it's a much more minor enjoyment than the landmark albums that preceded them. I like New Morning even more than those two.
There's a Gil Evans Lp on Horo that's never been on cd. Also I think the two Gil at Royal Albert Hall: one on RCA and one on an English label. I learned how to digitze Lps just so I could digitize them and put the cuts in correct order.