Snagged it.
Also noticed the 2nd dlc, See the Future was also marked as 560 points. I don't know if they messed up and marked it down too or if it was always that price.
Either way, pretty good content so far. Though I thought something was bugged. I couldn't get the 3rd knothole quest. Turns out I wasn't far enough in the regular game yet. Once I got to Bloodstone, the 3rd Knothole quest opened up. GUess it makes sense since they figure you've beaten the game before you bought the dlc.

I am way too lazy to blog, so I let my neurotic 360 do it for me.You can just call me Digital (or my human name, Matt)
"So glad we got you an Xbox360 and an HD monitor so you can sit around and play 30 year old Atari games" - my wife.
Team Preston FTW!!! - BC2 Squad Rush Tourney (KC Fish, PMH360, BoomerJay, Digitaldemigod)
Team NOM NOM NOM - L4D2 League - Doctor Butcher, Yous4wNothing, ReverentJudge, DCFCfoxes, Digitaldemigod