Javits expansion plans may double

Just when you thought the plans to expand the Jacob Javits convention center in New York were ambitious, they go and propose to double the cost of the expansion to $4 billion. The plan calls for upping the meeting and expo space from the current plan's 300,000 square feet to 550,000 square feet, and for adding three new levels on top of the current space.

I know New York is expensive, but think about this, from the article:

Boston completed a new exhibit hall three years ago with 716,000 square feet of meeting and exhibit space at a cost of $850 million, or $1,187 a square foot. The new plan in New York, by comparison, would cost $7, 272.73 a square foot.