I got a lot to fit into my life these days, games are a "backseat priority" (meaning, I gotta focus on school, work, and hobbies, and while gaming is completely unnecessary to those, I *love* gaming -- so I make time for it). I don't have time to be stuck on puzzles for like a half hour, ain't nobody got TIME for that, so I use a FAQ when things aren't obvious or really random sidequests or if a game doesn't really explain what to do next very well.
Or if I just don't care. If the game is average but I wanna get through it (i.e., Ni no Kuni), then I'll use a FAQ because the game is boring me and I just wanna know how to move on.