Refurb Samsung Gear VR, $20

If you own a compatible phone, the Samsung Gear VR is practically a must-buy accessory for $100. But for $20 (albeit for a refurb), you’d be crazy not to pick it up.

This model is compatible with the Galaxy Note 5, plus the Galaxy S6, S6 edge, S6 edge+, S7, and S7 Edge. Just clip your phone into place, and enjoy 3D photos, hundreds of games, a virtual cinema, and more from the Oculus VR store. It’s a shame it won’t work with newer Samsung phones, but if you still own a compatible headset, $20 is a fantastic price.