>>326481858
The vive is the only vive in the vive line unfortunately. HTC farted out a couple of turds after the original headset, and the original headset is 3-4 years old at this point. It's been greatly eclipsed. 
If you can get a used vive cheap, like 200-300 dollars, that's fine. It's a good way to try out VR without spending a lot.