>I don't see how more ram would extend the lifetime? Isn't there other factors that matter more?
Because RAM is the hard cap (if you ignore SWAP) while here's infinite number of CPU cycles. With a slow CPU things will just take a bit longer, but with not enough RAM then that's it, it's game over for your workloads (again if you ignore SWAP which I don't want to rely on, especially on a system where SSD is soldered).
