Is Now a Good Time to Buy an Oculus Rift or HTC Vive?

The Oculus Rift and HTC Vive, the only retail-available VR headsets to use conventional gaming PCs as a platform, have been on the market for over a year. That’s long enough for fans to wonder when new models will be coming out…and long enough for sellers to want to move some of the existing stock. So, is it a good time to dive head-first into virtual reality?