There expensive for 2 reasons. Profit and the government. They can only sell a few due to mileage requirements. So as a business they make a premium. I've driven them, but can't afford one either. If they wanted to, the power level could go way past 700 and live. But we know that the Viper and Ferrari are at the top of the food chain. Think of it this way. Use Chryslers technology and parts to build yourself a 1000 hp in something that weighs 3500lbs, you'd have one heck of a street car.
Doug