The thing is, i 100% understand all of that. But...
The first Maiden live album i heard (or saw, since it was actually the DVD) was Flight 666. I was blown away.
Then i went back after a while and bought LAD (the DVD). I was mega hyped because every fan i personally knew talked highly of it. And i must say, at the time, i was disappointed. The sound of the recording itself was not THAT great and Bruce in particular did not sound THAT great as well. I remember on the first listen i had to stop at the middle of Aces High because i thought his vocals were terrible. Over time my opinion changed quite a bit, but at the same time i still retain some of that first time shock. So there you go, that's my LAD story
From then on, i always think people actually hear this album more with their memories/hype than their ears, and with that i don't mean to offend anyone, i too sometimes am a victim of "nostalgia"