Even before the pandemic, I was surprised that Business Conferences were still a thing. With "Go to Meeting" and now "Zoom", no reason to travel. I know some of the Professional Associations my co-workers belong to saw a jump in "attendance" in their annual conferences when they moved online last year. My company even kicked in $100 in Uber Eats credits in compensation for folks now being to run up huge food and bar tabs at those conventions!