Honestly guys you sound like caveman extolling the virtues of square wheels... while modern man is going by on his "new" cart.
Having owned a DK2 for 18 months the Vive was the next logical step as I didn't want a polished DK2 with more comfort, room scale is so much more than job simulator which is great fun anyway,
I've been having totally new VR experiences in games like hover junkers vanishing realms modbox budget cuts and the gallery to name a few.. while being totally immersed (I defy anyone trying Audioshield not to come out grinning like a loon

) so much so I've had very little time for ED which is a shame but will get back on it once the bugs with the Vive are ironed out DCS world is incredible in cockpit far better than ED atm (demoed ED in the Vive at EGX on a Vive DK1 and it looked far better from memory).
All I'm saying is you would have to be crazy/uninformed IMO to give up perfect (for me so far) room scale and seated tracking for a little a bit of comfort/lightness, fitted right with the strap low on the back of your head the Vive so been very comfortable for me its better than the Rift DK2 IMO.
Mark my words when the touch controllers are released it will be the the best thing since sliced bread and OP yes I would keep the rift and get the Vive too and make your own mind up. (can always sell the one you dont like)
But if I had to choose though I'd personally go with the Vive its a pretty much a holodeck
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As someone else mentioned, the CV1 has decent headphones built in. The rift has one cable running to the HMD, while the Vive has four. It looks a bit bulky when compared to the sleek Rift.
Just for the record its 3 cables not 4 the forth is the headset cable which doesn't go the the breakout box and the vive cable is heavy duty for a reason as room scale kinda makes people go nuts and really have fun so its got to be up to the job of lasting the lifetime of the HMD.
PS.. Im not posting to bash the Rift i'm sure its a great piece of kit if all you want is seated VR but it doesn't change the fact that ATM without touch it has square wheels.
PPS anyone with a Vive try this out with the supplied IEM's
https://www.reddit.com/r/Vive/comments/4eemqq/an_even_better_earbud_wire_routing/