Well, what I can tell you is that the main reason why I bought the PS4 Pro was because of the added power for PSVR. The standard PS4 does the job, but I found myself getting nauseous after 10 minutes. With the added power of the Pro, I no longer have those issues. As far as the games are concerned on the PS4 pro. Those that have the patch, you can notice a difference, and it's not just subtle. However, there weren't enough games that were patched (All new PS4 games that have been released after November 10th now require to have the patch), so one could say that it may not have been worth it.
Until the upcoming 4.5 firmware update comes out: