Bought a Rift some months ago and really had to get accustomed to the low resolution at first (fortunately had no problems with VR sickness), but hardly ever play on monitor anymore. For me, the immersion VR provides puts the ED experience on a whole new level, you have to experience it for yourself. I can live with the restrictions that come with it (low resolution, poor legibility of small text, having to peek through the nosehole if you want to type anything, no access to third-party tools and the like, having to use the HOTAS for galmap navigation); except for typing, I don't need neither keyboard nor mouse as I put all functions on HOTAS buttons and the rest on VoiceAttack commands. The integrated 3D audio headset is nice, too. Wished I hadn't to wear glasses, as putting the Rift on and off can be a little cumbersome (the headphones like to get in the way), but once I put it on, I got no problems even during long sessions. In my experience, fighting in VR has pros and cons. Pro definitely is the headtracking, con for me is the lack of details in particular if the target is directly ahead. I can live with all that and would instantly buy another Rift if mine breaks, it's worth it for ED alone because it puts you right in the middle of things. YMMV.
I heavily would recommend testing a VR rig if possible before buying, because not everbody feels comfortable in VR and there is the nasty issue of VR sickness. Two of my colleagues (and my wife) instantly get headaches and really bad nausea to the point they just cannot use VR, where I can play for hours happily on the same rig. It's like sea sickness, I guess, some get it, some not.
HTH,
[noob]