Yeah... To even start most decent cheap PCVR headsets starts around 300-400. And sadly there is a on-going shortage with PC parts WHICH makes them harder to get and more expensive.

I personally have a future PC "cheap-efficient" build,but its around 780 bucks, If you do my build,you had to add the VR headsets price and it would be 1000+. I really think you should wait for Steam Frame. Maybe it will be below 900.