wonder if AMZN will ever get into being it's own shipper: via Natgas powered vehicles ahead for example, planes? Then they could control the front to end distribtuion system for themselves and the 3rd party sellers. A complete plaform of didstribution. interesting concept. You know they are looking at swithing to delivering via Natgas power as that would place less reliance on where oil goes to cost/fufillment pressures.