I also took the plunge late last year via the Best Buy open box for $508. They pulled a few out as there were about 10 open box at the time so I was able to cherry pick. I think when they launched, people thought it was plug and play and were returning them in droves once they saw the setup...
Caught it on the Steam sale for $25.. Money well spent. I stopped playing it on PS4 Pro a while back because I kept feeling it would be so much better on PC. I was definitely right.. Awesome game!