I don't have the apd's - so if you want to ignore the rest of my comments, then I'll understand... ;)
But, I was there - it was foggy, damp, and misting for the entire show. There were weird sounds and pops coming from everyone's electronics (maybe wet connections?), the keyboards were a bit muffled (the keys don't really like being covered with water and just don't sound 'right' - ya know?), and it generally wasn't a great night for the sound (esp. perc) to carry very well. The corps ALL did a great job to put on the show for us in those conditions (Thank you! - after a 3hr drive, we would have been seriously bummed had it been cancelled), but honestly, it was a hard night for the members to get 'up' for and to perform in.
I usually buy the newer apd's all season long to hear the changes to everyone's show as their season progresses, but I'm gonna pass on these. If you want to throw a couple of bucks to the corps who were there and buy them, go ahead (I'm sure it would be appreciated). But, if you are buying them for "quality of sound" reasons to hear those few shows - I'd wait.
Just my 2 cents.