Attention online is rented. Memory built in a room is owned. That is the whole argument for experiential, and it holds up: people remember what they physically did far longer than what they scrolled past.
The multiplier is content, not attendance
A room of forty of the right people, designed so that every part of it photographs and films well, will out-perform an event of four hundred that nobody documents. Plan the content moments into the floor plan — not as an afterthought with a photographer.
Three windows, not one
Anticipation, live coverage, and the recap are three separate audiences and three separate content jobs. Brands that only plan for the night itself are spending an event budget to reach the people already standing in the room.