Wouldn't you lose multiple sticks or fry multiple motherboards as you scale and do 1000? If you're frying 1 at 10, that means you're frying 100 at 1000. Your costs etc will scale as well unless you actually lower the risk/reward ratio, no?
At big scale, a single big accident poses a risk to ruin your big operations.
At 1000, the number of fried boards will be more predictable and therefore the risk to the business is lower, even if the long-run averages are the same.
At 100 000, you can afford a better and continuously improving process, and dedicated facilities, and skilled experts, and parts get even cheaper because you're a volume buyer or perhaps own the supply side, and you get to set your own risk curve.
Lots of things get cheaper at scale. Insurance, too.