Exactly! The code base is going on 15 years old and was built with no knowledge of S3 or it's ilk. For that reason each WWW server has to have a local copy of

Exactly! The code base is going on 15 years old and was built with no knowledge of S3 or it's ilk. For that reason each WWW server has to have a local copy of all the assets (or at least a significant portion).