I would totally be down for the cabin rental!  How likely is it we'll have that many people?  If man-cons past are any indication we will have 4-5 people.  Anyway I'm cool with the rates there.
I like that there's a mystery bedroom that they don't have any photos of "yet."  Is it full of corpses, or unicorns?
If we rent the cabin, Aeryk HAS TO run Call of Cthulhu.  Actually, I think Aeryk should run CoC no matter what.  Jesus, pull your weight! :)