Yeah, thanks to the profit-motive.
Did you see 60 minutes last night? I hate to bite the hand that feeds me, but well before I saw 60 minutes I saw first hand how everyone with their hands in the action has an incentive to keep the price of drugs high--except the people who need them.. and they're the ones who are paying for them--through their taxes and through high out-of-pocket copays, coinsurances, and deductibles.