I've never bought into "the myth of Poe", his stuff is of the "first time it's clever, on repeated readings it isn't" variety as far as I'm concerned. In The Masque of the Red Death, it's surprising at the end when it turns out that Death has infiltrated the castle (sorry if I ruined that for anyone, but it's been around for more than a century and you really had plenty of time to read it before now). But try reading it again, and you can see it coming a mile away. The fact that he died "under mysterious circumstances" certainly adds to his status, if he'd passed away peacefully in his sleep with no notion of foul play at age seventy-five he'd probably not have this mystique. That's just my opinion, anyways 
Though I will say, "The Raven" inspired the best ever segment of any Simpsons Treehouse of Horror (that and "The Shinning") 