Newspaper prices are more of a death spiral than a captive market.
People stop getting papers delivered in favor of online news, so prices have to go up to cover fixed costs, pushing more people to stop getting papers delivered and so on.
I notice, walking around the 'hood, that some people still get the San Jose Mercury-News delivered. Why?
I think they just have to get a morning paper, and if it's getting shittier by the year, well, so be it. You're right, lots of readers have already cancelled, but there's a core of readers who won't. The Merc can raise the price and they'll just pay it.
People stop getting papers delivered in favor of online news, so prices have to go up to cover fixed costs, pushing more people to stop getting papers delivered and so on.