You left out cooling. 1MW = 3410000 BTU/h need to move and cool a lot of air. Which adds to electric cost. And big air efficient handlers are not cheap.
Once again sticking it in northern states will help that. Putting it in the south may save you money for rent & other things but you will be running the chillers longer and harder.
I included cooling in the power usage of the ASICs as well as the buildout cost. I assumed that the climate is Northern Texas, so I used 100 CFM/kW as a conservative estimate. Air conditioning or chillers are more expensive than just shutting down when the weather is hotter than 100° F. The downtime would only be 1-2% and electricity is very expensive during those hot days anyway.