Hmm..I didn't think of that...
This actually reminds me of when I was little, and playing The Lion King game
I often choose the Easy setting of the game (the game had easy medium and difficult if I remember corectly) just to get to the next level quicker and see the next level's landscape and the creatures...
Ah, memories...
Now, in an adventure game I don't quite feel it has a point using difficulty settings except if you wanna attract newcomers to the genre or kids... or wanna go quicker over the game ,therefore, the easy setting