“In the market for a used car? Good luck finding a bargain: The price of ‘pre-owned’ vehicles has climbed considerably over the past year. According to Edmunds.com, a website for car buyers, a three-year-old automobile today will set you back, on average, close to $20,000 — a spike of more than 10 percent since last summer. … Why are used-car prices rocketing? Part of the answer is that demand is up. … But an even bigger part of the answer is that the supply of used cars is artificially low, because your Uncle Sam decided last year to destroy hundreds of thousands of perfectly good automobiles as part of its hare-brained Car Allowance Rebate System — or, as most of us called it, Cash for Clunkers.” (09/01/10)