[mmt]

Not the parent, but, I, too, have done the cost analysis, at much smaller scale.

And, yes, all-inclusive, AWS is 1.5x-10x more expensive than commodity hardware, depending on how poorly optimized AWS's hardware choices were for the particular workload and the commercial datacenter market at the time.

> What about the salary of the person

In general, I've found the need for the quantity of "person", bizarrely, exaggerated.

> The cost of spare parts?

Included, and it's low. Is this another aspect that's exaggerated?

> The cost of downtime when hardware breaks?

This is identical to the cost of downtime when AWS's hardware breaks.