I'm probably not that good for answering, definitely if you have neither I would buy the 2023.Is the 2023 better for the two sets' respective prices, though? (I.e. Is it worth paying more for this set than simply buying the DVD-A release?)
Sound wise, if you already have the 2005, I would just stay with that.
If you are a huge R.E.M. fan, I am certain you would like the Blu Ray video content.
It is not a top shelf release for R.E.M.