Becasue they are going up alot while AMZN goes nowhere and maybe there's a correlation there. Can't buy as many useless chotzskys when you have to pay more at the pump and for food. And I know Bagdad Bod of the Amazon board, Nemesis, will say they will merely pass it on to the consumer. Then maybe it will affect volume growth. Higher oil prices are no friend to AMZN.