If the QC25 drops for a nice price, I'll get it!!
Always been sceptical to NC because I thought that a decent closed headphone would be good enough (unless you're on a plane). Yeah who was I kiddin'... Few weeks ago, my brother handed me the QC25 and asked me to put it on, without music. I can tell you, I never experienced such silence in a long time. I had forgotten how much background noise we live in these days...
http://inspiringheadphones.com/review-is-the-bose-quietcomfort-25-worth-your-money