I don't really understand why they went the direction they did with Selected Works.
I think an actual box set would have been much better. Include all 6 Studio Albums, and the live concert. That would have sold much better (IMO) and been a nice collection to have, especially had they done a full concert double album from The Millennium shows.

BTW, I have the box set that they did do a few years back and I love it.

You could make them "special edition" versions of the albums and add all the extra stuff they had on SW.

Doing a pick and choose retrospective is neat, but I think that would be better from a group that had 10 or 15 albums.