OD&D - The perfect dungeon based roleplaying game, with dungeons. Just where the hell can I buy Chainmail?! BD&D - Pandering to the Rogue-like crowd. Also, when my DM's in a bad mood with me and make up biased rules. AD&D - Pandering to the Dungeon Master crowd. Also, can we not start at 5th level and I play a Wizard? With psionics? 2D&D - Pandering to Diablo crowd. Also, whoo, this all tastes a little Vanilla. 3D&D - Pandering to the Ultima Online crowd. Also, while I've spent 40 hours perfecting my NPC liche, it's too complicated to actually run. 4D&D - Pandering to the WOW crowd. Also, it's only fun when actually, you know, playing the game. Now T&T, there is a game.
LOL! Yesssss. All very true, although as pointed out below, 2E predated Diablo by quite a bit. Also, I wouldn't equate 3rd edition to Ultima Online....but the part about your 40 hour timesink lich that was too complicated almost made me spit my coffee!
The question of whether computers can think is just like the question of whether submarines can swim. -- Edsger W. Dijkstra