Even then getting ASML equipment at cost only saves a few hundred million. They'd still be left with almost $20 billion in other expenses like the hundreds of m

Even then getting ASML equipment at cost only saves a few hundred million. They'd still be left with almost $20 billion in other expenses like the hundreds of millions in robotics and material handling equipment (the most precise in the world), hundreds of millions in HVAC and electrical equipment (heavily specialized to fabs), hundreds of millions in chemical cleaning (ditto), hundreds of millions in structure dampening, hundreds of millions in doping and chemical vapor deposition equipment, all the permitting and civil infrastructure to support the fab (water and power), and so on and on for a very long list. The core competency of a semiconductor fab is getting all of that equipment to work together. It's more systems engineering (in the old school NASA sense) than anything else.