Dover Publishers has put a large number--204, if I counted correctly--of ebooks on sale for $.79 each. The sale is good for "a limited time."
I looked at only a few of them, but they all appear to be books that are in the public domain. You can probably get a lot of these free or for cheap elsewhere. You can be the judge as to whether or not these editions, by a major publisher, have some advantages worth paying 79 cents each for.
Go to this page to see them all:
http://store.doverpublications.com/e...e-special.html.
I've put this post only here in this non-fiction thread, but most of the titles are probably works of fiction. I couldn't find a general fiction thread, just a lot of fiction subtopic threads. If you are so inclined, feel free to post a duplicate of this post in any or all of the fiction threads that you want to.
Happy hunting.