CAVE is cool, but it's a less immersive experience than HMD VR. With Oculus I feel like I'm in the virtual world, baring a few annoying problems that are resolved in newer prototypes. When I tried CAVE years ago (early 2000s) I felt like I was in a room with video projected on the walls. I haven't used newer versions of CAVE, so the experience could be much better now.

I also think vertigo is a feature, not a bug, but I understand that a lot of people don't see it that way :).