100 off the normal 400 price. I have a pair, and I love mine. Way better than the Sennheiser BTNC 4.50. Never owned the QC35 so can't compare to those.
The MDR1000X do get hot though. They use a fake leather? that traps heat. If comfort is your #1 priority, I've read the QC35 are the way to go. The touch controls on the sonys are great though. You don't have to feel around to find the buttons to control your songs. Just swipe in one of the 4 directions and you're good. The sound passthrough option is useful and not. You can hear stuff around you, but it sounds so artificial that I always just take off the headphones.