then I have to pay Azul for the faster JVM and I may still not sufficiently cut my server costs, or the cost of the JVM paces the reduction I have in server costs.

2 million a year is several developers compensation saved every year. It also opens the door to more savings down the road, potentially, as existing workloads may discover they can use the same approaches to reduce cost / overhead.

I was just adding that in addition to the truth that normal Java could just do it. But if that is really not enough, then paying for a few Azul licenses is an addition can save you time and money.