In normal years—when it’s in-person—there are nuts wrapped around the building the night before, waiting to get in.
When a friend moved to Denver, I convinced him to go to the sale to try to get us some deals. He got there at like 6am and said the line was worse than anything Disney could put together.
Kinda like the REI sale...not really worth it. I’ll gladly pay full price to avoid the stupidity that is one of these sales.
That said, doing it online seems promising, but I’m not confident an online sales engine could keep up (fairly) with that sort of demand.