Have you? Despite being janky in terms of framerate and resolution, UC3 looks astoundingly good in 3D. The sense of depth and scene presence is matched by very few games I've ever seen. I'd pay full price easily just for that game alone to be remastered in 720p/60 (which is the HDMI 1.4 maximum) in 3D. Such a shame that they didn't do it.
Indeed such a shame that 3D came a generation too early. Even if it wouldn't caught on again, at least we would have got a couple of games on hardware that isn't constrained by performance or bandwidth.
Playing Trine in 3D 60fps is absolutely stunning.