The Oculus Rift is one of the current leading VR headsets on the market, offering up some pretty compelling content on the PC platform. It's also considerably cheaper than the HTC Vive, and right now you can pick it from Amazon with the reward of an Amazon gift card. What's more, is that the gift card is worth $100 so you could potentially put that money towards the purchase of something for the Rift, or any number of other things you might need.
The Oculus Rift is used to connect to a Windows PC, and once connected there's a world of games and other VR content at your fingertips. You can use the included Xbox controller to navigate through content and for playing games, although Oculus does offer a pair of their own controllers called the Oculus Touch. The headset also features integrated headphones so you don't have to worry about buying a pair, or having an extra piece of equipment plugged in so things feel more comfortable and you're less tethered. The headset will also come with a remote for exploring and navigating through the interface for Rift, and it comes with a sensor that tracks the constellations of IR LEDs so your movement is translated to the VR content that you're interacting with.
Update: This deal is still available.