The real reason is not really that people don't want to pay for it, but rather it's available for free, so there's no need for most people to pay for those things. If there were no free travel guides etc., people would still pay for them.
A comparable situation is happening with newspapers. People will pay for news if they cannot get them for free. Since you can these days get news for free, a lot of people are getting rid of their newspaper subscriptions.