I got the Rift CV1 a couple of weeks ago, along with a 1080ti. I took the plunge because my TrackIR finally gave up the ghost. I didn't see the point in buying a new one when VR was available. Cost was a big factor though and I only committed to it by 1) buying a 2nd hand Rift CV1 (plenty of barely used ones for sale on eBay, at good prices for those willing to stand their ground and wait); and 2) buying the GPU in installments.
I originally wanted a Vive, but eventually decided against is because:
1) It was cost prohibitive for me (even 2nd hand)
2) The Rift CV1 was deemed to have a slightly sharper display
3) although room-scale VR is an ultimate goal desk-based FS is still my priority, so the advantage of Vive was lost
All-in-all I read a lot about the not-all-its-cracked-up-to-be resolution of both and decided I was still willing to splash-the-cash as a TrackIR "replacement" with a view to being in the market for the 2nd generation VR down the line. This also influenced my choice of a 1080ti over a standard 1080, as it should handle the 2nd generation VR too.
As for the experience... it is simply brilliant! I'm not as bowled over as some, perhaps because I used nVidia 3D glasses with TrackIR for years... which came pretty close, so it is less of an awe inspiring trip for me! I can highly recommend it though.
I've spent a short while flying mostly over land, to find my feet... but now I'm going "feet wet" and checking out some Flying Stations classics. I'm enjoying small heck helo ops off Leanders for instance. One bug with FlyInSide, however, is that ship wakes are rendered 2D, which makes for an odd feeling!
i7-4770K 8Mb OC @ 4.5 GHz, ASUS Z87-PRO, 16GB RAM,
GTX 1080ti 11Gb GPU, Oculus Rift CV1, Leap Motion, FlyInside, Win7 Pro 64-bit, Saitek Combat Rudder Pedals, Saitek X52 Pro, Buttkicker Gamer