When you're evaluating your cloud service providers, you do need to look at your network cost. That's a huge thing. Some cloud service providers, like Oracle, only charge for data going out over the cloud over the internet. Other cloud providers charge for data going in and out. Other cloud providers don't only just charge for your storage, they charge for every read and write to your storage, which has a huge risk.
ACE Director, Oracle and Vice President, Enterprise Transformation, Mythics