Steam has a seasonal sales that occurs every times in a year, and the Autumn season of the sales is now on.
This means many titles, both VR and non-VR titles are on discount, most of which are steeper than usual.
If you have a VR title in mind, do go ahead to Steam store and check out the new price. This sales will last until the end of the month.
Do note that there is an upcoming Winter sales in the near future too. If the discount isn’t appealing enough, you might want to consider postponing your purchase to see if it gets a better discount in Winter sales (there’s no guarantee that the the title will be discounted in Winter sales though).