Okay, so the vast majority of my PF material is 3rd party stuff and a few of the "core books," with virtually no Golarion setting stuff.
For those who are Golarion loremasters, what products would you recommend that I pick up? I want books which are good in fluff and provide new things beyond what the Inner Sea World Guide provides. If they have a lot of game mechanics, I want them to be things I'd actually pick up beyond some gimmick builds.
Ideally, I was thinking getting Inner Sea Magic, Inner Sea Gods, the 3 Books of the Damned, Lost Kingdoms, Magnimar: City of Monuments, and Paths of Prestige.
Which of the location books would you most recommend (Worldwound, Osiron, Irrisen, etc)?