The rig you need in order to run VR is overly expensive. The cost would be two to three grand. you are either spending too much money or are rich. you would need at least a 970 gtx and decent i5 or above. With the prices of all of them combined that would be over one thousand dollars not counting the fans,the tower, the power supply and the motherboard. Although this technology is amazing it is one of the most expensive peices of technology on the market.
Now if your thonking "I can just lower these settings!" Im sorry to imform you that you cannot. The VR has to run at a minimum of 90 FPS (Frames Per Second) second. For those of you who dont know what 90 FPS requires let me show you (Example To The Right).
Now this PC in the picture is around two to three grand. This PC can probably run the VR decently. Unless you are willing to spend you life savings to be satisfied with the VR I wouldnt recommend buyind it.