Each successive Pharaoh resurrection would make less money.
It might also cost less money, because most of the cost might be R&D to work out how to resurrect someone, after which resurrecting each person is easy.
Continuing the Egypt analogy, each additional Egyptian artefact is less interesting than the previous one, yet people continued digging them up rather than just digging up the first few.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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