Some are apparently not yet available. Por ejemplo, I was going to post on my Facebook about the Zac Brown Band album, because I know some people who would want that, and that one isn't available until September 13th.
I liked Sister Hazel when they first came out (has it really been 13 years since "All For You"?), never bothered to actually pay attention to them. The tracks I've listened to so far are fine enough. The other is only a single track, but when I saw the claim that it was a hip-hop Hanukkah-themed song written by Senator Orrin Hatch, how could I not? In my opinion the song is extremely mediocre, but I couldn't argue with the price.
Thread ahead: Amazon.com MP3 Download Top 100 Bestsellers -- September 12, 2010 Next thread: iTunes Top Downloads -- September 12, 2010 Previous thread: New Music Tuesday (9/14/10): 1436 CDs, Vinyl &c.