[nemo44x]

That is entirely wrong. It might suit your use case (having a bunch of monkeys running around fixing a hack job) but I'd rather use a tool which can expand and reduce capacity when I want, which is quite often. It saves me money on cloud hosting to only provision what I need when I need it and be able to expand and contract it at will, easily. Your solution fails at this.

[bonif]

This is not my solution (and I don't know much about monkeys, sorry).

This is a cost-effective way to be always maxed out (expanded as you say) with fixed price, this can scale well beyond the needs of almost every business. And , as I said, if you happen to be the next Facebook, Uber, Airbnb or whatever, you will acquire the know-how to scale.