Wow, most of those fonts are really pricy, too.
$.10 says that's deliberate.
Part of the Pathfinder Compatibility agreement includes wording that 3rd party authors can't mimic the PFRPG "dress", which is to say look and design. By using fonts that smaller publishing houses aren't going to be able to afford, it sort of protects that portion of the look & feel. A one-time purchase at Paizo's end that a} looks good and b} keeps us mooks from using the same font is a no-brainer.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.