Batman Archive editions

[Cobblepot]

I have The Batman Archives #1, Dark Knight Archives #1 and 2.
I'm starting to think about collecting them all, so I can complete my runs of Batman and Tec.
» BATMAN ARCHIVES VOL. 1 Hardcover
» BATMAN ARCHIVES VOL. 2 Hardcover
» BATMAN ARCHIVES VOL. 3 Hardcover
» BATMAN ARCHIVES VOL. 4 Hardcover
» BATMAN ARCHIVES VOL. 5 Hardcover
» BATMAN ARCHIVES VOL. 6 Hardcover
» BATMAN IN WORLD'S FINEST ARCHIVES VOL. 1 Hardcover
» BATMAN IN WORLD'S FINEST ARCHIVES VOL. 2 Hardcover
» BATMAN: THE DARK KNIGHT ARCHIVES VOL. 1 Hardcover
» BATMAN: THE DARK KNIGHT ARCHIVES VOL. 2 Hardcover
» BATMAN: THE DARK KNIGHT ARCHIVES VOL. 3 Hardcover
» BATMAN: THE DARK KNIGHT ARCHIVES VOL. 4 Hardcover
» BATMAN: THE DARK KNIGHT ARCHIVES VOL. 5 Hardcover
» BATMAN: THE DYNAMIC DUO ARCHIVE VOL. 2 Hardcover
» BATMAN: THE DYNAMIC DUO ARCHIVES VOL. 1 Hardcover

But notice the Dynamic Duo Archives, DC has started to collect both Batman and Tec in one volume! Why didn't they continue the line...

 

[Cobblepot]

And I just found out there's a huge gap!
Batman Archives #6 collects 120 - 135 Batman.
The Dark Knight Archives #5 collects 17-20 tec.

The Dynamic Duo Archives #1 starts with Batman 164 - 167 and Tec 327 - 333!