With all due respect to Amazon they don't even come close. The Dept. of Commerce initially reported retail sales were down by 9.8% from December 2007 which accounts for about $37.2 billion less in sales (
http://www.thaindian.com/newsportal/business/us-retail-sales...). Amazon's total sales were only $6.7 billion and it was only up $1.03 billion.
Still great for Amazon but no where close to compensating for the total loss.