Azure is completely price-competitive with AWS. In fact, AWS and Azure seem to be in a pricing war, lowering their prices anytime the other one does. They're

Azure is completely price-competitive with AWS. In fact, AWS and Azure seem to be in a pricing war, lowering their prices anytime the other one does. They're both far cheaper than Rackspace. ...and seriously - you're worried about pricing three years from now with a startup?