A lot of people question the usefulness of 64+ cores on a workstation CPU. It is true that audio/visual tools like Adobe After Effects stop benefiting from extra cores at around 32 cores. [1]
But if you want to simulate production workloads on your machine say with Apache Spark or Flink, you are in the prime. You couple that CPU with 256+ GB memory, and you can start exploring the bottlenecks in your batch algorithms using as many cores as you want.
[1] https://www.pugetsystems.com/labs/articles/After-Effects-CPU...