I think it will always come down to personal tastes though. I've borrowed some D7000's from a local head-fi'er and have been listening to them through my home set up the past two nights and do find the D7000's are more neutral and detailed in the higher frequency. However, I find myself somewhat bored with them after a little while as the music doesn't seem as lively to me. Currently not getting as good a fit with them as I could due to some circumstances, but I can't see that improving what I'm missing from listening to HD650's or my W1000X.
As Shane says, scratch the itch and see if it sticks around or goes away. With a good return policy or even decent secondary market here, it's a little too easy to just go through and try a few headphones until you find one pleasing to your ears.











.. But the more I listen to other cans the more I appreciate what the D7ks have to offer. I always go back and think hmm Denon got it right with these. 

