Dear Dave Matthews Band, Wow. I've been your willing audio slave for over 4 years now. Imagine that! We've been through 4 concerts and countless new CDs. You release a CD every few months now -- most of them live shows in places way cooler than Camden, NJ. And that's great. But lately...I dunno...I'm starting to feel a bit used. Like you take it forgranted that I'm going to buy every live CD that you do. I got the "Red Rocks" one for Christmas. And it was fantastic (esp "Hunger for the Great ...