We were told that this product (ABD) is in it's evolution stage. There were a handful of trips in 2005, twice as many in 2006 and twice as many as that in 2007.
I believe ABD is still trying to see what are going to be the most popular and cost effective destinations. Even though the Viva Italia trip is offered again in 2007 and it's major components are the same, there are still some changes to the itinerary.
There is also the question of scheduling and hotel availability for each destination.
It's my guess that we won't see a stadardized list of Adventures for quite a while, if ever. I'm hoping that they keep this product fresh and exciting with new places to explore.
If you see a trip that excites you, you should take advantage of it, it could be different or not offered at all next season.
Kevin