Think WSS ended up being $360m, prob $400+m like for like with inflation.
But agree with the concept - it’s much cheaper on a $/seat basis. And it occurs with a step-change as you go to larger stadiums.
There is a lot more concrete, steel and cost in the higher concourses and escalators and elevators which are the primary differences between the two stadiums. It’s stairs all the way down to ground if you are in the upper tier at WSS to get anything.