In reply to:

I just don't buy that analog naturally has higher resolution, or that that higher resolution would result in audible change.



There is really no "resolution" as such to analog audio. It's like the difference between a painting and a scan of the painting. No matter how high a resolution you scan the original at, it could still be a closer representation at a higher resolution. But the longer you wait, the more the analog source deteriorates (paint goes back to the earth, analog tape does too) so there's a tradeoff there as well.

Bren R.