I think he's now wearing a badge "back to prison"...

As for "mono", George Martin spent an enormous amount of time getting the "mono mix" just right for "Sargeant Pepper...".

Brian Wilson said that you have not really heard "Pet Sounds" until you have heard the mono version.

Dylan's last recording that was avaiable in mono was "Blonde on Blonde" and that version, in mint condition, sells for a lot of money.

Actually, the late 1950s and early 1960s Jazz recordings that audiophiles prize so much are the mono version. The stereo is considred second choice and the "re-channeled for stereo" pressings are considered garbage.