Questlove's book on clearance
If you were hoping to pick up Questlove's book "Soul Train: The Music, Dance, and Style of a Generation", I've found it at my local Barnes & Noble for $12.99. Excellent book, which covers Don's run on the show, as well as the various acts and dancers. I highly recommend checking it out.
Unfortunately, this looks to be in-store only, as it's still $30 on Amazon.com and Barnes & Noble's website (BN.com).
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Never insult seven people when you're only packing a six-shooter.