I bought a Rift in January and driving with it is a total revolution. I’ve had triple monitors and TrackIR for years, but the effect of depth perception and total immersion is an easy 2 -3 seconds a lap on any circuit. I can’t imagine doing it without a wheel and pedals though.

A lot of people complain about the lack of AAA games for VR.
The two games I play the most in VR are non-VR games I was playing long before I got my Rift last Christmas- iRacing and Battle of Stalingrad- Great Battles series.
Even though the resolution is less than my flat monitor, I will never play them again in 2D. In iRacing I am sitting in the car! I drove the Nurburgring at speed at night recently and it was a heart pounding white knuckle experience!
The IL-2 cockpits and planes look solid and convincingly life-like. I found my self constantly craning around in my seat checking my six and realized I was doing exactly what the WW2 pilots had to do.

Another cool and free experience is 1943 Berlin Blitz by the BBC. They took audio recorded by a BBC reporter during an actual raid on Berlin and combined it with surprisingly good graphics to give you a real feel for what one of those 8-9 hour missions were like. My favorite moment is on the return when the English coast is in sight and the pilot relaxes and starts singing. Cool stuff that really can't be experienced any other way.

I suspect it will be a while before we see anything like a AAA game for VR natively. I suspect GTA would be kind of cool in VR (done properly - not the hacks we have so far which are a very poor experience IMO). Red Dead Redemption 2 would also lend itself well to VR, as everything in that game that you need to deal with is within human range for 3D (100 - 200 meters lets say).

I feel though that the golden app for VR has not yet been made, the one that will grab everyone and will set the gold standard, and will in retrospect be obvious. There are some games that... somewhat come close, your Beat Sabers, Elite Dangerous, Skyrim VR etc. (Although I did NOT like that last one, but I have to concede to overwhelming high reviews that it's just me.)