You would be wasting your money, as there is no guarantee you could ever use it on a PC, and quite a good chance that you won’t be able to. The original PSVR is (electronically) equivalent to a monitor and so it it is relatively simple to get a video signal up on it. Reading sensors etc. took a lot of reverse engineering, and at least a year from release before anyone figured that out. It then took a couple more years before it was usable as a PC VR headset. Tracking and controllers (using the original hardware) is still very much a work in progress, over 5 years from release. That is without Sony making any effort to prevent non PS4 users from using it.
Even if they haven’t [encrypted headset data] it would take a lot of reverse engineering (read several years) just to get an image on the headset. Then there is the tracking, which would need to be developed, as there isn’t a ready-made SLAM tracker available for Windows (assuming of course the camera protocol was reverse-engineered). Then the controllers etc. etc.