They don't change unit pricing if that is what you mean not even at very high volume. That means bill increases become costlier at scale as the volume discoun

They don't change unit pricing if that is what you mean not even at very high volume. That means bill increases become costlier at scale as the volume discounts are not deep enough in a build vs buy on a pure cost basis (Lock-in, ease of use, reliability, talent reasons apart) at 100's of millions or billions spends governments do not to consider inhousing.