I am very curious which set of headphones you feel will be more durable over the years. I currently have MDR-V700's and not only did they murder my ears over the years, but they're now finally showing stress fractures at the DJ swivels. I'm in the market for new headphones and I felt that the Senn555's were too weak in the bass department. The V6'es seem like they'd be too flat for me (it's not like I'm recording or anything) so I've pretty much narrowed it down to these two headphones as bass is really important to me and I like the V700's sound. Any more thoughts?