@Serok42 I used to run a con (2 years), run game days every weekend at as many as five different sites, and run Encounters during the week, so I have tons that I find every now and again. I never sold the materials because I wanted to give them to people as rewards or as opportunities to run games themselves and grow the community. When 4e/LFR went away, the piles got shoved into boxes and largely forgotten.