Epic! Microsoft have made some good choices this year, bad ones too... but good ones overall.
And yup, both games deserve some more sales so this will do well.
Also I think Alan Wake did badly because people were all saving up for/spending their money on Red Dead. Plus it wasn't advertised nearly as much as it should have been. It's a AAA standard game in my eyes and it deserves a couple of million sales!
Anyone looking to buy a 360 should definately go for this deal. And by Alan Wake being downloadable means more Live connected players. And 360 already has more connected gamers than ps3.