North Texas RPG Con. Aside from being a terrific old-school convention, Doug Rhea (the convention organizer) invites the con's guests to write up the adventures they run at the show. Each year, he publishes the previous year's adventures in limited numbers (~50 of each, I think) for sale solely at the show. Afterward, the authors can do whatever they want with them.
Right now, my 2010 adventures are sitting fallow, awaiting some sort of decision about how to release them. They are a D&D B/X adventure, The Dark Abbot of Kos, and a Gamma World adventure, Hive of the Wasp-men. Hive is short, so the two adventures were originally printed back-to-back in flip-book form. They could be split apart easily enough. I'm prepping my 2011 adventures for printing, and they will be available after June.
Plenty of people in this hobby who aren't me stridently resist the new tech. Where do you fall on that scale? Do you buy game PDFs enthusiastically? Buy them only if there's no other option? Use print on demand? Or buy only printed books? This isn't a scientific survey; I'm really more interested in the why behind this preference, rather than numbers.