Hi mate,
Where are you based? I only ask as I found that oculus are doing demos of the rift in U.K. stores now. I had never used VR so was hesitant to pull the trigger... until last night! I had a demo in the Currys/PC world in Glasgow last night, totally blown away with the immersion the rift gives you! Although I wasn't in a flight sim, I can totally see how it would improve DCS.. so much so I've just ordered all my new PC parts AND a rift! Lol!
Go for it!
Cheers,
Craig.