I hear a lot of complaints about 3D being blurrey and dim, but in my experience (Sydney Australia, cinemas near the CBD) 3D movies are always done on the newer

I hear a lot of complaints about 3D being blurrey and dim, but in my experience (Sydney Australia, cinemas near the CBD) 3D movies are always done on the newer digital projectors and are bright, vibrant and extremely sharp. 2D on those same projectors is also sharp, and while the glasses may block half the light getting through it only takes a few seconds for my eyes to adjust and it looks just as bright again, but with a nicer colour depth. Are other locations in the world using old/poorly maintained/incorrectly configured projectors from 3D?