To me, it feels like many people are attempting to lump both products together, even though they appear to be fundamentally very different devices, in part because they each made very different design decisions and tradeoffs. The vision pro is attempting to validate the concept of a computer on the face, while the Quest still seems pretty much geared towards gaming.
I personally don't think there is much room for Apple to bring the price of the Vision Pro down, at least for the near foreseeable future, especially if features like high resolution displays and sub-12ms passthrough are considered "non-negotiable).
My understanding is that the Quest has a lower resolution screen and the passthrough isn't as good, though it's still debatable how much this will actually matter to the end user.
From the videos I have seen online, the Quest's eye tracking isn't as good as the Vision Pro, though it does come with controllers. So it depends on whether you see yourself relying more on physical controllers (which would be more cumbersome to bring around with you outdoors) or you are comfortable with Apple's decision to not have to rely on physical controllers as much as possible. Kinda like using a wireless mouse with a windows laptop vs using a MacBook with their famous trackpad.
The metaverse assumes a critical mass of people using it. The Vision Pro appears to be more of a standalone device which can interact equally well with other people who don't own one.
I guess my point is that the success of each will ultimately come down to their respective business models. The vision pro will bank on margins and maybe subscriptions (seeing how heavily it leverages streaming services). How exactly does Meta expect to turn a profit from their Quest headset, given the rate at which they are burning cash on the platform again?