I agree with each of the points you make, Oats.
I often wonder how many shows from 1973 - 2000 were recorded in high-enough quality for Bruce to approve their releases. It wouldn't surprise me to learn most of Bruce's show's from 2002-present have been professionally recorded, but what if we are nearing the end of the pristine recordings from 1973-2000? We know there must be at least a handful more, correct? But are there 25-30 more?
I, for one, would suggest the Archive Series would lose much of its lustre once the 1973-2000 library is exhausted.