You know, assuming things always gets me in trouble.
I assumed that everyone would know about Paizo and Gamemastery, so it would be impolite of me to explain.
Paizo is the company that used to make Dungeon and Dragon magazines. Now WotC has recalled those products. Paizo used to have a singular advantage, they could use "official" WotC material. Now they no longer have that crutch.
Some people would just fold the company, or turn it exclusively to an online store. Paizo instead cranked the creativity and delivered some really cool products. Maybe they are too expensive, maybe people want something more or different. But if you want a decent DnD adventure right now your choices are either to write it or get something from Gamemastery.
And they have boobies.