There are two things that might swing us into having everything entirely hosted at Amazon. 1) If we need to store large amounts of data at S3 and our app const

There are two things that might swing us into having everything entirely hosted at Amazon. 1) If we need to store large amounts of data at S3 and our app constantly needs to manipulate it, sitting between the user and the data rather than simply linking to it. 2) If we launch an app that has a high dependency on Amazon Simple DB. In either of these cases we would get a significant performance increase from having always on EC2 instances for the app servers. In the meantime SliceHost continues to serve us well for a fraction of the cost.