The casing fell apart on my ue200's, my mono prices had a water intrusion from sweat, my sony xb60's had the same thing happen. I also had a pair of fx101's that died too. I generally buy cheaper IEMs for the gym but am willing to pay more if they aren't going to die... I had a pair of beats tour(got them for free from monster) that had a cord fray on them. I guess I should state the sony's were the only ones that I purchased recently.