Damn. I just bought a maxed out MacBook Pro M5 Max 128GB 8TB, still waiting for it to be delivered. I could get 256GB RAM M5 Ultra 1TB for roughly the same price, and it's double the memory bandwidth. Which one would you recommend? I do plan to run local LLMs.
Contact Apple care and see what they can do. They have been known to do upgrades if you buy around the same time. But with the ram situation that courtesy might be gone now.