Greed or not adjusting to changes in the marketplace fast enough, though there are some exceptions. A few years ago, I was pleasantly surprised when the Kindle edition of the textbook for a Research Methods course I took cost about $30. A used print copy from the university's bookstore was about $90 and a new copy was over $150. (The e-book version for the Nook ran about $60.) Granted, you can't sell back a Kindle book, but, as is typical, the new edition of this overpriced text came out before the end of the semester, so the bookstore wouldn't buy back the print editions anyway.
I usually use the RSS plugin for Evolution. I also, ocassionally, use Liferea, but the fact that it sorts feeds in ASCII order, instead of alphabetically, means I end up manually sorting all my feeds. (And my C coding skills are way too poor to be able to submit a patch to fix that issue.)
And for anyone who wants to take the ownCloud news app route, I'd like to point out the <a href="http://demo.owncloud.org/">owncloud demo site</a> will let you test out the news app (and all the other features) before you install it on your own server.
Greed or not adjusting to changes in the marketplace fast enough, though there are some exceptions. A few years ago, I was pleasantly surprised when the Kindle edition of the textbook for a Research Methods course I took cost about $30. A used print copy from the university's bookstore was about $90 and a new copy was over $150. (The e-book version for the Nook ran about $60.) Granted, you can't sell back a Kindle book, but, as is typical, the new edition of this overpriced text came out before the end of the semester, so the bookstore wouldn't buy back the print editions anyway.