Activists argued that if all those who needed AIDS drugs could get them via this kind of funding, the very increase in the scale of production would drive drug costs down, which would in turn fuel further market growth, creating a virtuous cycle.
When life-cycle costs are compared, natural gas is currently a more economical decision than flex-fuel powered vehicles, although both are more expensive than gasoline at current figures (keep in mind that these dynamics could change due to oil shocks or increased demand for traditional fuels both real risks).