USB sound device plugin hint not convenient

Currently when a USB sound device (e.g., USB headset) is plugged in, a hint window appears in the bottom right that has a button to launch gnome-sound-properties.

I believe that most of the time in such a case you want to set the new device as the default, just like with normal headphones -- the speakers are muted the moment you plug the headphones in.

As far as I know, at least Windows and OpenSolaris immediately switch the default device, no questions asked. I would suggest that Ubuntu should do the same thing. At the very least, please make it easier to set the new default: instead of the button that launches gnome-sound-properties place a button "Make the new device default" or something like that, so that there is no need to go through an extra dialog. It might make sense to make this configurable, for the few people who may not want this behaviour.