Good for you guys. One gets the sense that the US defense industry is breathtakingly inefficient, and overcomes this handicap only through a massive infusion of funding.
The Gulf War forshadowed the issues that snacktime so well described earlier: Cheap rockets, artillery, and missiles being used against urban targets would, and will continue to be a problem to be solved and require countermeasures for. But for the army that was deployed in '91 was designed to fight a ground war in Europe, not revenge attacks and Scud potshots in the middle east. It worked to assuage fears at the time, and that was good enough.
Don't think that those lessons were ignored, however. Systems like Arrow and Iron Dome were developed not just with Israeli ingenuity and necessity, but large amounts of direct funding from the U.S. DoD.
The US military procurement system may be breathtakingly inefficient at procuring cost-effective equipment, but that's a different issue.