Cheap and replacable. I found this wasteful. You said "I don’t worry about this too much: they are fully solid state machines, running on low power and low-ish

Cheap and replacable. I found this wasteful. You said "I don’t worry about this too much: they are fully solid state machines, running on low power and low-ish temperatures, thus making their rate of degradation much slower than some beefy machine churning 24/7". How coyld this be measured vs just wishful thinking?