If I got one I'd just have it follow me while I do routine stuff during the day haha. Like walk into a status call having it follow me in.
QC25 is $300.
There's two drawbacks to the bose headsets. First you can't use the headphones without noise cancelling so if your battery dies you can't listen to music. The other drawback is that there's no wireless option. You can disconnect the wire and just use the noise cancelling feature but there's no OEM wireless module (which seems kind of silly to me). I found some youtube DIY videos that jerry-rig a BT receiver to the wire but most are bulky and look ghetto-tastic.
Aside from those two things I love my QC15!