See, the problem with dropping the prices of books, is afaik, that authors earn most their money as a byproduct of Hardcover sales. That used to be true, anyway. If we now drop prices to ebook sales, there's a pretty large profit margin disappearing for the author (even if costs are cut by not having a physical book, manufacturing and handling still costs less than the disappearing overall profits, which in turn means the author gets a smaller cut.). Availability will increase manyfold, though... in general, there is a market for HC books, and I suspect the publishers do not want it to disappear... paperbacks, though? perhaps they'll get replaced eventually.