That's the general vibe I got from Ptolus, too. I was worried about future support during he preorder phase because I hadn't heard anything about future products, but then I learned the idea of Ptolus was that it was to be a complete product that didn't need additional support. Any support developed afterward would be nice, but not needed.
I think I might start buying the PDFs one at a time for future use. The PDFs add another level of DM functionality in that I can search across all of them at once as well as print of any materials I might want to reference in print format at a game table. Being able to easily copy and paste is nice, too.
By the way, Dave, I noticed you live in Gainesville, too.