Construction takes time and resources. They have a lot of projects going on at the same time. VB is in super rush mode, so that's sucking up extra everything available. Saying "just add more people and money" is cute and all, but there are only so many skilled and experienced people out there. And you can't discount that Disney has a lot of people tied up on their projects too. Eventually, you reach a point where you can't reasonably do any more projects until others are done. We may be looking at that point. You really don't want them hiring inferior workers to do these projects. And you really don't want them over spending on all of these projects in the name of speed. ROI gets a lot harder then and future projects get cut.
It'll be interesting to see how they approach things going forward if they want to build out the southern property, build whatever at WNW and do Nintendo all at the same time.