But the main cost of nuclear isn't the construction of the reactors. It's the management of the fuel, waste and the operation of the plants, the salaries of the

But the main cost of nuclear isn't the construction of the reactors. It's the management of the fuel, waste and the operation of the plants, the salaries of the people involved in keeping everything safe at all times, the repairs and maintenance, the special transport vehicles, the refineries of the fuel and so on. These costs are partially hidden in general taxes since they are often handled by the government, but they still exist. The Rancho seco nuclear plant is costing some 10 million per year, 30 years after it closed. The cost of "having made it" is likely to eclipse the cost of actually making it. Even if your prediction should occur, it won't reduce the total cost of nuclear power by a lot, and it will have to compete with plants that (for example) provide free electricity from the sun, since their costs are basically all paid upfront.