I mean, assuming I can get a good price, the card is a given.
I'm just very curious to see if it could do VR.
That thought has crossed my mind.
Does anyone here know how important CPU is for VR? Is my i5 4690 enough?
It will work, and it obviously depend more on what you are able to forgive, but ED and other VR games are rather CPU intensive.
I first got my Rift while I was on a i5 4690k, stock clocks, everytime I tried overclocking I'd get horrid BSOD's and no benefit.
And a 980ti.
It was limiting me enough to investigate some stuff and I came to conclusion the cpu was holding me back to grab a slightly used i7 4760k, (same socket) and it did help.
Enough that I felt confident enough to plop in a 1080ti soon after, but then it was being held back on the GPU as well.
Gpu was doing 45%, cpu 80%+.
Didn't feel this get fully fixed until I upgraded the entire box to the i7 8700k.
Now don't get me wrong, it was fully playable and enjoyable from the jump, I just, as always,
wanted more, I get a bit crazy with these things and if that means having oatmeal for dinner for six months, that's what I will do, besides, contrary to some.
No one has died from lack og booze

Also I was gearing up for the Pimax 8k I pledged for on a whim :s
Yes, it will be pushing it for your rig, even if you upgrade the GPU, and if you where for the goal of VR, I would highly recommend going up to the 1070 if possible, but again, it should work with a 1060 6G as well.
As for cards, it depends on where you are of course, but I'm seeing cards available for what retail was a year ago before things got nuts and even 1080ti's and below are in stock.
I am seeing 1060 6GB cards available here for about €360, and 1070 8GB for just under €500, including tax.
These are also in stock, not just in a handful of units but 40+ units for several versions of these cards.
Now if the mining craze hadn't been, these cards should possible be €50-100 cheaper so long after launch, but miners inflated the price, and the RAM prices are still being crazy.
Honestly my personal recommendation is to go for the EDtracker, wait another year or so, since this fall\winter I expect there will be a launch for a lot of upper mid range like the i5 and 1160 gpu categories that should be able to do current gen VR well, these things will probably not launch until around December or after the new years though.
And of course, Oculus is quite possibly launching a new HMD next fall (2019) with wider FOV, higher res and some other bells and whistles.
Demoing VR is cool and all, but it will change once you have it at home, and you can tweak and configure the unit perfect to you, took me two weeks to just get rifts position and IPD setting "just right".
Also not just VR, the icing is also your available control inteface.
It wouldn't be as fun and engrossing for me if I didn't also have a HOTAS and pit area to mimic the game setup as well as it does.
After those two weeks I couldn't even consider logging in with just the screen.