Case in point, a client of mine (one of the top 2 or 3 US corporations you might think of off the top of your head outside of tech) wanted to start publishing a daily email digest of content aggregated from all their content outlets. I tell them OK, send me all your feeds, I'll whip it up in no time, and there it was, delivered early and under budget. They publish on Wordpress, Tumblr, etc, sites that give you RSS feeds without work.

It's much easier to go to /rss and get the content than have to coordinate with however many teams and organizations it took to create all those sites.