I must apologize for posting on this subject yet again, but an article was recently brought to my attention that reflects my viewpoints so exactly that I feel compelled to tell you about it, so I can bask in the warm glow of smug self-righteousness. From Technology Review (an MIT enterprise):
Because the advanced lithium-ion batteries put a lot of power into a small, light package, a much smaller battery is needed to power the car, which could reduce hybrid prices. As a result, a variety of cars in a fleet could come with a hybrid option that costs about as much as the option for an automatic transmission...
In the short term, however, [this] seemingly logical assumption about lower-cost hybrid cars might not be right. ...a major reason consumers buy hybrids today is to have a "badge of honor" that shows their commitment to the environment or to curbing gasoline use. ... Part of this distinction... comes from having to pay a price premium for the vehicle. Hence, in the short term... it might actually be wise for carmakers to leave hybrid prices higher.