One dungeon per patch!?

[linay]

Let's not pretend dungeons alone bought us all that; any fair accounting would demand we also throw Diadem, Diadem Revamped, Wonderous Tails, and perhaps Aquapolis into the costs section.

What kind of accounting is that?

Diadem is being revised, WT is still here as far as I know (haven't done it in a long time), and Aquapolis has its counterparts in the latter expansions.