[opo]

>...We are talking about materials that need to be stored thousands of years here, a couple of dozens billion Euros (or Dollars) are peanuts in that regard. The timescales are just insane with this stuff and make it very likely that we still gonna have to pay for keeping disposal intact many thousand years after we phased out of nuclear into something we can't even fathom right now.

Right now nuclear waste can and should be recycled which would reduce the amount of waste: https://en.wikipedia.org/wiki/Radioactive_waste

Soon it will be possible to use most of the waste as fuel:

"...Fast reactors can "burn" long lasting nuclear transuranic waste (TRU) waste components (actinides: reactor-grade plutonium and minor actinides), turning liabilities into assets. Another major waste component, fission products (FP), would stabilize at a lower level of radioactivity than the original natural uranium ore it was attained from in two to four centuries, rather than tens of thousands of years"

http://en.wikipedia.org/wiki/Integral_fast_reactor

The worry people have about nuclear waste is greatly overblown to say the least. The amounts generated are manageable and in a relatively short amount of time we can use most of this "waste" to generate electricity. To put it into perspective, no one of the general public has ever been hurt by nuclear waste and you definitely can't say that about coal waste.