Does anyone have a good example of something that's made as a single page app that shouldn't be one? The reasons described for choosing a single page app, real

Does anyone have a good example of something that's made as a single page app that shouldn't be one? The reasons described for choosing a single page app, real time functionality and rich ui interactions etcetera, seem like core parts of just about every new startup's web service offering as all these formerly offline desktop programs become online SAAS subscriptions and so on. What wouldn't need a single page app?