I've never really seen the point of live albums. For concerts, the only point is actually being there.
There is a one session recording that most will have heard of but wouldn't include in the category. In the mid/late seventies I lived in a place called Northwood Hills (north of Harrow) and had my haircut at a trendy place near the Met line station. One day, the usual crimper said that some of his friends had been working on a concept album that required a spoken part and the producer had manged to get Richard Burton onside to do it. He apparently turned up at the agreed time (a surprise to most) and, having had no previous sight of the script, proceeded to make the recording in a single take. Jeff Wayne's War Of The Worlds.
Having said I'm not keen on live recordings, I'm more open to DVDs. This is just a brilliant show and possibly qualifies as I believe there was a CD available. Live In Dublin!