Economias de escala.
Fred Hicks of Evil Hat, editores de FAE :
We printed like 13,000 copies of those. Because we hit that economy of scale, our actual cost (not counting up front costs of writing — minimal — and art — reasonable) came in at less than 40 cents per copy (close to 35). To make a MSRP $5, 40-page book work for distribution our costs needed to be neatly under $2 per copy, so that's given us a lot of breathing room. It also means that those 13k copies cost us maybe $5,000 to print. And, yeah: the KS presold enough copies of FAE to more than cover that.
Então, eles fizeram uma quantia decente de lucro em US $ 5, e por que cobrar mais se você realmente não tem, especialmente porque é o seu produto introdutório?