My favourite group Genesis had a very visual stage show throughout their long career. They pioneered the vari-lights and jumbo-tron screens that have enabled the whole arena tour industry to thrive. Unlike the Eagles, they were always on TV, always on the radio, bootlegs galore etc
They first released a video of one of their shows in 1982 and have subsequently done the same with every tour since but that first video included long segments of boring back stage footage interspersed with the actual stage performance. It's pointless and it ruins the document.
They said, at the time, nobody believed that anyone would sit through a video of a whole show without any breaks.
I can see why they wouldn't contemplate filming a whole show but as the 8 Eagles tracks on the DVD are from the start, middle and end of an Eagles show, I find it hard to believe that the cameras weren't running for, if not the whole show then at least a lot more than the 8 tracks they've parted with.
Hell Freezes Over 2 will be when the Eagles realize that YouTube is their friend.