The new reality is changing publishing strategies. Seth Godin's new Domino imprint launched its second title, "Do the Work," with free electronic versions sponsored by GE. Why fool around with a shady download site when you get the real thing sent right to your Kindle?
All publications won't be sponsored and free, of course, but I think many books will be available in very cheap electronic versions in an effort to achieve higher volumes.
Or, much like movies, perhaps you intro at a higher price to get the folks that really want the book, then drop the price to spur demand and distribution.