Lol. Who doesn't need more blinkenlights and VCAs?
As far as potential additions, I've got 20-some VCAs including the ones built-in to modules, but I would consider adding another quad or hex VCA just in case I decide to get weird with it some fine evening, and the Joranalogue comparator for some extra logic functions. Other than that, I'm at my blinkenlight limit. haha