I would essentially need a new PC yes. I could keep my case, PS and SSD but the rest has to go. And I actually just put about 600$ in upgrades into the machine last year, so it stings a bit.
I'm also not trying to match minimum spec, if I'm going to spend money upgrading for VR, I would want something that will last at least a few years, so I looked into (reasonably) top-of-the-line hardware.