As Flurin points out, you get the original artwork, front,back, gate-fold inside (if any) inside the booklet. And you get two titles which I think will sound better than the one title in that digipak series. For about the same price or less. I think an argument could be made this is a better series.
It is unfortunate that we have one title already in a lot of these twofers, but for new collectors these are a good boost.