"There hasn't been any significant push-back from the consumer, because I think people realise that if you're buying a physical disc and it requires an attachment to someone else's network and servers, people know bandwidth isn't free," said Brown.

Yeah, keep shoveling.

When someone buys that disc, they are paying for the network and server support that goes with it. When they then sell that disc to someone else, the first person is no longer using it; the second person is using it instead, and is using the resources related to it. It doesn't cost more bandwidth to support the same number of users in something like this.