Jim,
Great job on the video (and kudos to that Frank guy too!
) and hope to see more like these (I've subscribed on YT to make sure I don't miss any).
In addition to the future subject matter that BRM suggested above, I'd like to see -
Veneers and finish options
Salk craftsmanship
Veracity line (mainly HT2-TL & Veracity ST)
And I especially agree with BRM about removing the myth about Song Surrounds being for surround duty only. In fact, I'd go as far as suggesting renaming the Surrounds to something like the Song Monitor and Song Monitor MTM and market them more as the entry-level system for Salk, kinda like a gateway drug.