Engineering mangers are promised cost savings on the HR level. Corporate finance managers are promised OpEx for CapEx trade-off, the books look better immediately. Cloud engineers are embarking on their AWS journey of certification being promised an uptick to their salaries. It’s a win/win for everyone, in isolation, a local optimum for everyone, but the organization now has to pay way more than it—hypothetically—would have been paying for bare metal ops. And hypothetical arguments are futile.
And it lends itself well to overengineering and the microservices cargo cult. Your company ends up with a system distributed around the globe across multiple AZs per region of business operations, striving to shave off those 100ms latency off your clients’ RTT. But it’s outgrown your comprehension, and it’s slow anyway, and you can’t scale up because it’s expensive. And instead of having one problem, you now have 99 and your bill is one.