Even a small number of repositories can create a large amount of admininstration. They need to be created and configured, backed-up, new users need to have complicated ODBC settings created, and network firewalls may even need to be changed.
By putting all this in the cloud, you have a simpler setup which is easier to maintain. Now everyone can have access to any of the repositories they need, and all the data is saved in a secure location.
And once you’ve made this first step to cloud hosting, the rest is easy – see EA SAAS