Still, the extreme lack of price elasticity of uranium makes oil look like a joke.

The only short term (less than 5-10 years) substitute for uranium ore is more SWU's (more intense enrichment). But I think enrichment capacity is pretty much running full bore, which is why they are building Geroges Besse II, USEC's American Centrifuge and Urenco's US centrifuge (and either AREVA is part of that or planning it's own US enrichment facility).

On top of that, the old gasseous diffusion facilities are horribly energy inefficient. Tricastin use something like 2700 MW while the replacement is going to be about 5 % of that.

Peak oil is not an energy crisis. It is a liquid fuel crisis.