Does that go for the QC2's as well?
I traded my broken QC2's for a brand-new pair of QC15's for $100. It has been a few years though.
I don't think that the noice canceling itself would be much different (same tech) except for the on-ear(QC3) vs over-ear(QC2/QC15), but for me the choice of the QC15 over the QC3 was the battery. I use mine a LOT a few hours a night at least), and always have a couple of AAA batteries handy.