am181d
Adventurer
Ten dollars is still far too much for a PDF core system. Truth be told, the price of PDFs is primarily why there is so much damn piracy. I feel people are far more reticent to purchase PDFs at any price above 5 dollars, as opposed to gambling away 30 bucks on a hardcover product.
I suspect this is a demographic issue. In ten years, RPGs will be distributed primarily via PDF at prices 60% to 100% of what we pay now for print copies, adjusted for inflation. Gamers will carry around libraries of 100+ gaming books on their KindleRPG, all fully indexed and searchable.
Ultimately, the print versions will have LESS utility than the electronic version, and the economics of a zero-growth (or negative growth) market will make traditional print runs cost prohibitive.