> IMHO it adds, but only if you are big enough. Netflix level. At that level, you go and dine with Bezos and negotiate a massive discount. For anyone else, I’d genuinely love to see the numbers that prove otherwise.

It adds if you're smart about using resources efficiently, at any level. And engineer the system to spin up / spin down as customers dictate.

For situations where resources are allocated but are only being utilized a low percentage (even < 50% in some cases), it is not cost effective. All that compute / RAM / disk / network etc. is just sitting there wasted.