Nuclear power is one of the most efficient forms of energy it is also very cost efficient. Nuclear power plants are one of the most economical forms of energy production. This is in spite of the fact that capital costs have been hugely inflated due to lawsuits, court injunctions, and other delaying tactics used by individuals and organizations opposed to nuclear power. As you can see nuclear energy is far cheaper than any fossil fuel. Through the use of nuclear energy future costs involved with the development of new power sources will be saved.
Nuclear energy is no where near the limited resource that fossil fuels are.
The Integral Fast Reactor, developed by Argonne National Laboratory, would have had this feature in addition to on-site fuel recycling, thus avoiding transport of spent fuel.