The Vampire2 is a really nice upgrade for the A600. The A600 has never interested me until now. Unfortunately, this is another Amiga that is priced higher than expected and the V2 will surely increase its value. I did like that the A600 came with built in IDE and has a smaller footprint than the A500, though.
It will be very interesting to see how far the Vampire2 core development will go.
