PLI's for the Kindle

Here's a follow-up on my last post. Amazon is selling PLI books for the Kindle according to the "Amazon's Kindle to Sell Law Books", Wall Street Journal, July 1, 2009)  In that article, Andrew Frank from Gartner is quoted:

"There are a lot of practical reasons to believe that the digital market may well be more profitable for publishers of legal, medical and educational texts.  Since these texts are reference material, the ability to index them and set up bookmarks, which you can do easily with the Kindle, will save time and money for users."

Save time and money by migrating to electronic books?  That would be a good thing, but not exactly what we've seen from publishers in the past.