I love P&P RPGs. I also love CRPGs. They are two different things. There are no CRPGs that give you the potential to do absolutely anything, like P&P RPGs can (if run by a good DM). There are no P&P RPGs with the depth and complexity of advanced CRPGs like Planescape Torment. Even if you did make a module out of the game, it wouldn't work nearly as well in P&P format. As a specific example, could you imagine EVER working through the Unbroken Circle of Zerthimon in a P&P RPG? Unless you have some amazingly intelligent people, there's no way the discussion could ever approach the quality of that in the game. Even the best roleplayers aren't consistent enough to pull that sort of thing off. In fact, I'd say that true roleplaying is easier to do in CRPGs - the constraints placed upon your dialogue options prevent you from acting out of character, which is a constant issue in most P&P RPGs.
Going back to Mass Effect, when was the last time you had an action-based combat system in a P&P RPG? I'm willing to bet on never, unless you were part of a very insane V:TM LARP group.
