So the cost of building a fab hasn't come down in the last decades, huh? Genuinely asking, is there some^W^W^W what is the "uncompressible" cost in fab-fabbing?

So the cost of building a fab hasn't come down in the last decades, huh? Genuinely asking, is there some^W^W^W what is the "uncompressible" cost in fab-fabbing? I'd totally guess that staff and the building itself are not it?