People with high specs, was it worth it?

For me, high specs mean Ram > 36 GB and storage > 1 To and chip = Max or ultra (studio).

I own a 2015 MBP with based specs 16 GB RAM and 256 GB storage. Now in 2025, RAM is enough for light development but I am tight in storage, and I am missing a lot from the M architecture, like MLX framework.

So I am planning to buy a new MBP or an Apple refurbished one. But I am doubtful if high specs are really needed. With 128 GB of RAM I would be happy to run some LLM locally, but that's it. I don't need to have 50 containers up at the same time either.

Are there use cases I am missing? Was it worth it for you to get a big config? For development or any other use case?