The "Station's" are the workstation type servers that take normal power and sit under a desk. To my knowledge Nvidia stopped producing them internally after the Station A100, but other partners may produce them still.

The full fledge DGX servers like the B200 or H200 (latest versions) are in the $300,000 - $400,000 price range just for a single DGX :)

When I set them up I always want to stress test them by mining crypto with them for like a hour haha but never have gotten the approval to do it.

Also I had a customer who had a old station a100 they said they didn't want and I could have but that was 2 years ago and I was an idiot and was offered it about 20 minutes before I had to leave to fly home :( I regret it everyday. Used ones are anywhere from $10,000 - $20,000 now on secondary market.
https://docs.nvidia.com/dgx/dgx-station-a100-user-guide/intro-to-station-a100.html