Crystal cove is supposedly way lighter. Sony Morpheus attaches to your head in an entirely different way. Valve's is still supposed to be a bit heavy.

DK2 is pretty damn responsive, but only if you have everything set up just right and are on a beefy GPU.

Resolution is going to go up rapidly, we already have 1440p phones.

Playing half-life 2 with Razer hydras converted me even back on dk1. I expect room scale walking to be even more immersive than moving around with the joystick on the hydras, but way limited in what types of games translate well due to room size. But I think they can do some great things, a lot of what we do in the real world is room-scale.

Just hanging out in a virtual theater with friends watching content is pretty awesome already, your friends just aren't there yet.

It does separate you from your body and give you a blindfolded feeling, lots of improvement needed there. For that reason AR will probably overtake it for a lot of uses for a long time.

While I was not as plugged in to tech news back then, I'm pretty sure no one emerged from demos of 3D TVs barely able to speak because they were so impressed. And I do see that a lot in the VR press these days. I also own a DK2.

I don't know if you realized, but DK stands for "development kit". PS4 development kit is a huge metal brick which weights like 10kg and is super loud, but I wouldn't judge the retail console based on the development product. Also - the bit about the immersion - it's just your opinion.