Yeah, I've been thinking about this and I agree with you. The problem here is the ISP pricing models. As part of their marketing, they create 'uncapped' tariffs

Yeah, I've been thinking about this and I agree with you. The problem here is the ISP pricing models. As part of their marketing, they create 'uncapped' tariffs based on a business model that says that most users won't download a great deal of data. iPlayer breaks that model but what it should mean is that ISPs re-evaluate their pricing plans rather than creating a tiered internet which has the incentives in all the wrong places. Amusingly, some ISPs do quite well out of iPlayer. Plusnet has a fantastically cheap capped deal (6.95, which I suspect is a loss leader) that users almost immediately exceed by switching on iPlayer.