But that breaks the economics of this, no? If you're in the US and charge $6/TB and I'm in Germany and charge $100/TB, why would traffic ever go to my server? If your US server gets overloaded, am I now making $100/TB? How does the network ensure that this is both fair and competitive? Moreover, how can a customer know that they're not going to get a surprise bill for an order of magnitude more than they planned for?