Really? People constantly buy things that they don't want/ can't afford. That's why the average American saves nothing. I know people who took home equity lines of credit to buy a car they couldn't afford, people who have no savings, but have more than one plasma TV.
Americans over-spend all the time, that's why so many have huge credit card debt. It's not the extra $800 dollars that makes the cars un-affordable, it's the fact that they have a history of being crap that makes people not want to buy them.