Panther express is cheap, cheaper than S3. Let someone else worry about that issue. The amount of time you'll spend setting it up, testing it, maintaining it,

Panther express is cheap, cheaper than S3. Let someone else worry about that issue. The amount of time you'll spend setting it up, testing it, maintaining it, is time wasted on other important aspects of your business/application. You are not going to be able to do it any better or any cheaper.