I know this is a fairly old thread, but no point opening up a new one. Need to get the Volunteer board a bit more active anyway
I have volunteered so far on the 05 and 06 GVBR, and am a volunteer for this years GVBR and ATB. (Rode on 03 GVBR and 2 Great Melbourne Rides)
I find the GVBR to be a great, cheap holiday which allows you to escape from the real world of stress and work. (although it does not allow you to escape the early starts
Its a out of world experience that allows you to see great sights, and when your not working is incredibly relaxing. Its not every week you have a roaming campsite with over 5,000 people, where it all comes together with what seems so easily.
You also have typically a great group of people to meet and work with. Just a great bunch of people in general, and is a very rewarding experience at the end when its all over.