Yeah, Revolver was probably the best thing they ever did. Just superb and like nothing else at the time. My mom bought it for me when I was in the 2nd grade. I wore the grooves off of it then and today, after all those years (I’m 57 now) it still sounds great.
I’m partial to the White Album, as well.
Sgt. Pepper was the perfect album for the time, but doesn’t really hold up as well as those two.
“why not release them in DVD-Audio and/or SACD????”
It was some time ago for about $175. Now it’s a bit more:
The Beatles [USB] Limited Edition, Box set:
Almost $600.