Because nobody is going to build the stupid and expensive conversion plants (at very marginal economics) when they can easily be make junk piles by a shift to nuclear, natural gas, wind, solar, geothermal, etc.<quoted text>
This should already be happening in the case of synfuel from coal vs refined fuel from petroleum. But it's not. Why?
Investors are either backing crude oil (based on the expectations of $200 barrel windfalls) or alternative energy (based on long term planning and not wanting to wreck the economy for some short term gain).