More than how great the trailer may look, the involvement of Raimi & Co. in handpicking the director and everyone involved's apparent dedication to making a really great horror film, rather than just trying to cash in on an existing property, is what has attracted me to this.
Although the quantity of remakes being put out might be annoying, I've never been one to discount a film just because it's a remake. After all, two of my all-time faces (The Thing and The Fly) are remakes. One could argue they're "adaptations" of their literary source material, but I don't think either film would have been made had their not been the earlier version.
Anyways, I'll definitely see this when it comes out.