[EricH]

Take your regional. Now expand it to 80-100 teams. Now put 4 of them in the same large venue. Add in FLL and FTC teams, each with an FRC-sized field area of their own, and a pit space for them.

You now have the World Championship (minus scholarship row and the supplier showcases and the presentations).

One thing to be aware of is that the rookie teams tend to be placed all in one or two areas--the pits are sorted by number from low to high. Another item: Crowds going in, crowds moving around... you get the idea.

But, in essence, 4 large regionals in one building is the best way to put it. Only these regionals are qualification-entry only... bring your A game.