My last 2E game was at a convention in November 2006. (Ed Greenwood was DMing, and that's the edition he prefers.) Before the DM showed up, we players were joking about whose Players Handbook was closest to falling apart.
Basic D&D. Um... 1987, maybe? (I switched to 1E as my preferred game in `84, but occassionally DMed the boxed version for younger relatives afterwards.)
Not that anybody asked, I've DMed 24 games of 1E this year (game 25 is the day after tomorrow), and been a player in one (at a convention).