Would the 200 dollar price difference in the VTF-3 MKIII over the VTF-2 MKIII be justifiable for my room that is about 25x15x8? I know there is not such a thing as too much power but in my situation what would you pick? Also I am coming off an old Onkyo HTIB sub so I am looking for a great improvement no matter which one I choose. :)

For 3600 cubic feet, I would choose the VTF-3.