Sure, 800 seems to be much logical and overall more advanced candidate, doing bigger jump further and saving funds later, although they are picky as hell. If I won't drive them well, they will simply not deliver. From what I've heard, 700 would be
warmer and friendlier upgrade. Just like 598 on heavy steroids. I know there are others brands in the wild as well, but I will dig Sennheiser's for upgradeable cabling, better design (it's relative), much better comfort (learned from reviews). Comfort is crucial for reaching transparency in listening. That is my opinion at this current moment, at least. Of course I am interested in orthos. Dynamics are kinda limited, I do feel this..
I am quite enjoying our discussion! And I love talking future gear plans. What's yours?