In a pleasant surprise, Palladium has decided to monetize its back catalog by starting digital sales of its RPG line at DriveThruRPG. You can click here to see the available Palladium line. Nicely enough, the PDFs are discounted, meaning you can, for example, pick up the original Rifts core rulebook for $12.49.
The ability to monetize your past products by offering them in digital form is a good thing; the discounts and the convenience of not adding more physical products to my shelves mean that I'm inclined to blow a couple bucks from time to time on an older book that I may have been interested in years ago, and can now mine for ideas or just read with a sense of appreciation for the history of RPGs.