I'm not convinced either, it's just wishful thinking on my part basically.
You did single out active shutter glasses regarding pop out effect, compared to what glasses-free potential is. I've never tried active glasses (except at Best Buy a long time ago for a few minutes), do you believe the "pop out" effect (or just 3D effect in general) is better with active than it is with passive?
With projectors you can only use active shutter, with televisions i think passive has half vertical ( or is it horizontal i forget ) resolution and dark scan type lines can be visible, if 4K gives you the full 1080p and the scan lines are gone then that's the future as far as TV goes for 3D and it would be a massive improvement, more brightness for 3D in the home and cinema is needed.
I don't know if active shutter is better than passive for 3D popout or vice versa, interesting question, i'd love to know the answer.
I agree with previous posters concerned about crosstalk, my Samsung E6500 plasma has very little but it is there, my DLP projector has no visible crosstalk and it's far more impressive because of that, manufacturers need to think carefully about their glasses and tints they add to the image, i was able to calibrate mine so that the 3D image is as good as the 2D but that's because i own an i1D3 meter and software, most owners cannot get rid of the tint completely, oh and torch mode for 3D...no thanks.
I think you need glasses to get that impressive very close to your face type of 3D effect that i enjoy.