News Reader's Promiscuity

An early December article in The Economist looked at some research into the habits of newspaper readers particularly noting the impact on readership should content be paid (Link):

The survey also contained devastating news for those publishers hoping to co-ordinate attempts to charge. When Guardian readers were asked whether they would pay £2 a month to read their favourite paper online, 26% said yes. But if all newspapers charged? The proportion prepared to pay for the Guardian might have been expected to rise. Instead it fell to 16%. This seems odd, until one considers readers’ promiscuity. Faced with having to spend rather a lot to keep snacking from a wide variety of news sources, they protested. The questions are hypothetical, and people may react differently when and if pay walls actually go up. But this will hardly encourage newspaper owners.