&gt;Their conspicuous absence seems to indicate something is amiss with this analysis.<p>As I said, these services exist, they&#x27;re just not very prominent.<p>That doesn&#x27;t mean they&#x27;re not valuable, it just means people don&#x27;t <i>think</i> they&#x27;re valuable, and I&#x27;m not certain that&#x27;s a rational decision.<p>I think if you asked people whether they&#x27;d pay say £10 extra on a £300 appliance to be reasonably sure it doesn&#x27;t have a hugely annoying design flaw, a lot of people would pay.<p>But if you ask them to pay £10&#x2F;month for access to a website that gives them that kind of information (even if they can cancel it after one month), they feel like it&#x27;s a waste of money.<p>&gt;if all the free, evil ad-sponsored content on the internet is of such &quot;low quality&quot;<p>I&#x27;m not saying the content is low quality, I&#x27;m saying the <i>advertising</i> itself is a low quality form of product information.