This is the state required annual meeting for corporate shareholders of the Watchtower printing corporation. Watchtower turned a mandated business meeting it into a religious event where a select number of tickets were made available that gave non-shareholders bragging rights for attending. A few years ago this meeting was turned into a big deal ... Select few Halls were set up to take part.
I'm pretty much out of touch now. I don't know how extensively the Kingdom Halls are connected. I assume in the U.S. it is the majority.
It is an event that now rivals the memorial in importance ... it seems.