To echo exactly what Martin said, they do. The CC buildings are literally giant convention centers designed for this sort of thing. The company even designed them to be expanded (and they partially were). It's not often when I want to see a project get slashed but this is one of them. They're going to build the wonder egg table, realize "oh...we had more space with the CC building", and then deal with all of the compromises (lack of expandability?) of having a structure 40ft (guessing) in the air.
They want their shiny new thing.
They could've made CC West look modern and fresh but whatever. I'm so glad we have cOoL gUy Zach leading this project. He knows what everyone wants.