I just signed up to MyRepublic (a dice roll I know) and their special offer is $200 off a PS4 Pro or PSVR. Since I have a PS4 and Oculus Rift already this isn't clear cut.
Getting a PS4 Pro with the discount and selling my PS4 would result in a graphics upgrade for the future Spider-Man game and for Horizon Zero Dawn DLC. I can accept the PS4 graphics that still look good and try a new experience with PSVR, however I have an Oculus Rift yet to try.
Thoughts on which I should pick?
Just remember you also have a third option - don't buy something you don't really need (not the Ozbargain way I know) and instead sell the $200 voucher onto someone else who might have a stronger need for it.