A market that doesn't exist and would make this game fail again. You want a FF XI-2? Where quests were just telling you "go find [thing]" without any detail at all?
Sure there is a big difference playing with a wiki open and having direction in-game. The advantage of in-game directions over wiki is that at least you are not spoiled since you don't see what's coming up next. And that's impossible to avoid with a wiki. You will at least see how long the page is, so have an idea how far you are in a quest.Nor can they read the forums/guides (or feel they should not need to).