The cheapo headsets using phones are not really VR. Apparently they have big issues with tracking.
Of the 3 worth buying:
- PSVR is the cheapest, though clearly you need a PS4. Supposedly not quite as good as the other competitors. Choosing it really should be driven by the software available. Personally I'm not impressed by the available games on the PS4.
On the PC, you can go with either:
- HTC Vive. The CV1 is supposedly slightly better on graphics (depending upon software), but the Vive has "roomscale", allowing you to walk around in say your lounge, which will be ace for some games
- The Oculus Rift CV1 (which I own), has supposedly the sharpest graphics (but not by much over the vive). Frankly, it's better suited to simulations.
For example, I use it with:
- Elite Dangerous. Seriously cool to be in your ship zooming around
- DCS. This is a flight sim. I fly a Huey. IMO the best example of how VR really comes across.
- Assetto Corsa. Brilliant racing game, very immersive in VR
Having owned the CV1, my opinion is that's it's ace, with the right software. If the sims available didn't work, I wouldn't use it for anything else. It's not good enough to say surf the net on and clearly loads of software don't support it.