I am not a regular player of the PF card game, though I hope to try it out at some point, but the Print On Demand option for errataed cards and custom cards caught my eye through a blog post. Assuming this program is at least "paying for itself," has Paizo considered adapting this program for the unavailable Item Card and Face Card sets?
Even at 50 cents per card Urban NPCs and Friends & Foes would be cheaper to POD than they are to buy on the secondary market, as would the Rise of the Runelords Item Card deck, plus it's the nature of item cards that I'd love to order a few copies of each of the Goblin weapons exclusive to that deck.
There are a number of pieces of the user-supplied character art for which I'd happily spend a dollar to microlicense and print as a Face Card, and I have a feeling that, once I look, there will be items I want, too.