I have a DCS World friend who would like to get in on the VR act, but doesn't have the necessary dosh to invest ina PC upgrade and the Rift. He's looking for a cheaper alternative.
He was looking at that Epoon (?) E2 thing - but having read up on it, I advised against for DCS World. I was wondering about OSVR - but I'm not sure about that, either, as far as compatability and cost goes. So I was wondering if a DK2 would suit his purpose. Of course, it isn't supported any more, but if it will provide him with a basic VR experience in DCS World (yes, he knows the graphics won't be up to snuff) then why not?
I wouldn't spend more than a few bucks on a DK2. It might stop working any day with the next forced update. On the other hand, if you're only using it for DCS and you're sure the requirements won't change, you could block Home updates and keep using it for a while.
Dk2's can be had on occasion on the cheap. Guys sell them on the iRacing forums from time to time. We use a DK2 on our demo setup at DSD to run DCS, FSX, P3d, iRacing, ED, PCars, LFS, Dirt Rally and PCars2. The DK2 is quite good, comparatively speaking, of course.
DCS has some hardware demands for VR, but our i7-3820/GTX780 system does a good job running the DK2. ASW isn't supported, but the flying is decent with low settings and a PD of 1. Like n3bulaR said above, it could stop working with the next Oculus update, however.