In reply to deiric_oheathirn:
If you work it out at metres of climbing per euro, then Rjukan with its ease of access and reliability will be the best value.
However - we all dream of climbing those Scottish Cold Climbs classics with a high pressure system in place under impossibly blue skies. In those conditions - Scotland is the best place in the world.
Difficult call, I think you have to follow your heart really.
Rjukan is an excellent safe bet, but after 3 seasons there, Im heading back to Scotland for a few trips this winter.
I hope the ice gods smile on you whatever you decide.