If it works, then it works :) Company B I mentioned above still runs location specific infrastructure, but each one of these clusters can host several customer

If it works, then it works :) Company B I mentioned above still runs location specific infrastructure, but each one of these clusters can host several customers. Of course there is some overhead (i.e. very new regions sometimes operate at a loss if there is not a critical mass of customer in that cluster, but they are subsidized by more profitable regions until they reach a critical mass of customers to pay for the whole cluster costs).