If the data is valuable presumably it would have a backup. Many of these could be caches, or rebuildable from other sources. Many could be disposable. Since

If the data is valuable presumably it would have a backup. Many of these could be caches, or rebuildable from other sources. Many could be disposable. Since you can't really know which database is valuable and which not, you sort of average the price, since this is volume game. Or maybe he want's to give the impression that this is not very profitable, to keep others from doing the same.