I’ve had my 650 for over 10 years and have never had a problem. On the other hand the headband 280 pro broke after a year and I treat everything I own with care. In addition, my head is much smaller than the average headphone wearer. Plus, they were so so uncomfortable whereas the 650 and 600 are one of the most comfortable pairs of headphones ever made in my opinion. Not to mention, the 280 pro sound like crap. So I completely agree with Dusty. I am actually somewhat interested in the DT1770 to use in the office. I would love to have a closed pair of headphones that sound decent, isolate, and are comfortable. The DT 770 are one of the most comfortable pair of headphones I ever owned and isolated like crazy but were way too dark/muddy sounding. So far, I have just heard people complain about the DT1770 being too bright which is probably a good sign.