Enterprise public cloud like AWS really doesn't make financial sense for most large enterprises or small organisations. If you have enough scale there's no need to pay the premium. If you don't need the flexibility you don't need to pay the premium. Only those in are stuck in the middle or have use cases that need extreme 'elasticitiy' or 'agility' really benefit from using this model.
Enterprise public cloud like AWS really doesn't make financial sense for most large enterprises or small organisations. If you have enough scale there's no need to pay the premium. If you don't need the flexibility you don't need to pay the premium. Only those in are stuck in the middle or have use cases that need extreme 'elasticitiy' or 'agility' really benefit from using this model.