omg - Why is the hall so big?
i mean, u guys wanne build up in the air in the future

Or u just get cheap an old bunker from the nazis

Otherwise very nice. Longs quit impressive ! Good Work

I think that they have the additional height for air flow, since an INCREDIBLE amount of heat would be generated by all the ASICs running in that room, assuming they're all running at full capacity.
But planning for the future wouldn't be a bad idea, once an ROI is made, they can continue to expand, if they feel like it is the right decision.