I think it’s personal preference. Although the resolution isn’t as good as a monitors, the head tracking being a 1:1 ratio means that I am able to spot targets in a merge much better than I used to on a 1080p monitor.
Some people though have a really hard time picking out targets in VR due to the nature of VR being not as refined graphics as a monitor.
Also- I was using facetracknoir before which although it works is not nearly as stable as either VR or even trackir. I don’t regret the purchase, but I know that I’m still waiting until VR becomes less demanding on computers and better quality visual.