In the late 70's my first soundboard was Destroyer 27/4/77 ....and I was SO disappointed. I already had the audience Destroyer of the next night 28/4/77 and the difference stunned me. To this day I would much rather have a decent audience recording than any soundboard. As Jimmy said himself about Zeppelin...."above all else an ambient band " In my opinion soundboards had an inflated reputation for many years when it came to Zep....( and a lot of people confuse sound board with multi track ) and my go to was Destroyer 28/4/77 and the Millard LA shows. The 1980 original soundboards just confirmed my belief.
Having said that, I am old school and confess I have lost track of all the stuff that can be done now with new technology, Matrixes, new sources, mixing of xources etc....so much out there now.