I also thought I like to see more of Pisco. Calvados was just another sniper (snipers tend to have boring developments, imo), and the affair with Vermouth aside, I had zero interest in him. And Tequila is just brute muscle, what is there to see?
Like Chekhov said (taking the words right out of my mouth), Pisco occupied a role that no other Borg seen before, or since, occupied: fundraising. And that honestly fascinated me, because how an organization makes and uses their money can tell a lot about the nature of the organization. How do they get their money? Hit jobs (probably, but still)? What about that APTX, could that be a potential "job" for the Org for a monetary reward? More subtle methods? Hacking? Phishing? Or donations (lol)?
How is the money used? Pay off politicians? Attain research materials (admit it, APTX would take a hella money to develop, and the gear as well)?
Is the money used to pay the operatives? Or, perhaps, are the operatives unpaid? And in the latter case, why? Is the organization idealistic in nature? A simple glance into the economic branch of the organization can, I believe, shed a lot of light about the nature of the Org.