I have dropped that much multiple times on deluxe versions of RPGs. In fact, right now I'm staring longingly at my Call of Cthulhu 7e slipcase with Investigator's Handbook, Keeper's Rulebook, Keeper's Screen, handouts, adventure, etc.
I don't know that I'd drop it on this particular RPG, but the price isn't the crazy thing, given a look at those components. OTOH, there's no way I have that much money for something like that so soon after GenCon. (Stares longingly at his Cthulhu Brittanica: London boxed set, so lean and sexy and packed with goodness.)