Sorry for no links. Just saw this while browsing on my iPhone. Amazon has Lost Planet 2 for $48.73. Don't know if the quick price drop is a bad sign, but it seems like this is happening to a lot of new titles soon after the release date.
Ebgames.com is selling the digital download version of Ghostbusters game for PC for $9.99. You have to add it to your cart in order to reflect the price. Looks like this is a 'limited time' special, (probably expires after Halloween).