Ask HN: To experience the latest in VR, what should I rent?

I've been bearish on VR since Bubble 1.0, but every now and again I like to try the latest-gen stuff just to keep in touch. (Hopefully someday I'll be wrong!) If I'm going to rent a VR system for the fam to try out over the holidays for a week, which one should I pick? And what are the titles that best convey VR's potential? (Bonus points for not having to pay a lot for a game I'm unlikely to play again after the week is up.)