In the real world merchants get sold into Magento Enterprise for projects where it's not necessarily needed. First let me make clear Magento Enterprise is a great product, it can provide a fast loading, PCI-Compliant, fully featured eCommerce solution out of the box. But unless you are going to make use of the Enterprise features and get additional value from these, the license fee can seem like an unnecessarily fixed yearly cost.
If you have decided that the additional cost of the Enterprise License isn't needed for your Magento site, then how do you migrate away? There are a number of factors to consider and a number of different approaches you could take, I'm going to outline two methods and explore how each could help you achieve this task.