3d ratings, not much at all. I would even go as far as saying not a thing until developed heavily.
3d Reviews, now that is a whole other kettle of fish...it is an excellent name and one that will likely take off in some months when 3d becomes more mainstream, as many people will be looking for reviews.
I will be conservative however at this point and just say mid-high $xxx
Had it been .com the value would've gone easily to the thousands.