I will chip in here. Although I agree with all that you guys have said. Your comments seem to be skewed to a perspective that all companies are being run in U.S.A, Canada, Germany, etc very developed countries where power is constant and can be relied on. The skilled labor to run these servers is available for hire. The parts and infrastructure are available to rent or buy. Majority of the world is not like this but there are formidable companies all over the world running, and for them, this is one less unreliable aspect of their company.

To give you an idea, if you want to run a data center or your own servers in some countries you need a standby generator (because electricity is not a given) and the Diesel used to run these generators are imported and the economy of these countries is shaky so the exchange rate fluctuates, so suddenly the cost to keep your site up becomes a variable and is now subject to government announcements (not even in an evil authoritarian way), policies and import taxes. In the face of all of this, having a steady AWS bill with reliable infrastructure becomes priceless to these companies