[sudhirj]

This is actually classic patio11 paradigm shift. The point is that nobody (who actually makes business decisions) gives a shit about the per GB cost of backups.

The shift that Tarsnap needs to look at is this: how much is the company willing to pay to never lose this data X probability of data loss without Tarsnap. And then subject that number to a ceiling of hiring competent (this is very important work) developers to replicate Tarsnap.

Take that amount that companies would be willing to pay, and then divide by the actual size of the data. A company with 1TB of super valuable data will likely be willing to pay at least $X000 a year to have it safeguarded, which is really $X per month per GB.