Yep that's what I'm thinking as well. I was going to buy a 5090 mainly to play around with LLM code generation, but this is a worthy option for roughly the same price as building a new PC with a 5090.
Plus you have fast interconnects, if you want to stack them.
I was somewhat attracted by the Jetson AGX Orin with 64 GB RAM, but this one is a no-brainer for me, as long as idle power is reasonable.