good article: Does Amazon S3 really save money?

http://news.ycombinator.com/item?id=422225

I think the meat of this post is actually in the well though out comments.  As they talk about not just the math but actual metric creation of "cost."

 

Comments

Amazon S3

According to what I have read, photo-hosting service SmugMug has used S3 since April 2006. In November 2006, they claimed to be saving US$500,000 per year by using S3 instead of their own dedicated storage servers. SmugMug has noted outages and slowdowns with S3 but continued to use the service. After seven months of using S3, Smugmug claimed to have saved almost $1 million in storage costs, though some commentors questioned SmugMugs claims, pointing out that S3 charges per month. SmugMug responded that they had been spending over $6,000 per terabyte of space. So I think that it really helps to save money especially if you’re on a mass production and that is the onus behind America Saves Week this latest recession.