Offline community is such an important part of building online community, and Patron captured this well, but the part I really liked about this post was how they looked at the typical available options (hosting parties at a bar) and then took a perpendicular decision: Let's spend that money on our own terms.
If you've ever done event planning, having a catered gig at a restaurant, etc., can be extremely prohibitive, but renting a boat and using your own people can cut through all those overhead costs and deliver a better ROI.
I do wonder: With only ten people, what does Patron do if one of the 10 turns out to be a real creepy individual, ruining the experience for everyone?