UPDATE: As of yesterday evening, the prices for these games have gone back up. Though these games are still cheaper on Amazon then they would be at retail, the difference is less striking and (as always) it's probably for the better to support your local game store if you can.
There are some crazy deals up on Amazon right now that I would be remiss not to tell you guys about.
Mansions of Madness, $36.79 (54% off) - A Lovecraft/Cthulhu themed dungeon crawler set in Fantasy Flight Games' Arkham Horror line of games. This one has some quirky mechanics and takes a while to set up, but is probably my favorite in the genre due to the intricate mysteries that the Keeper player must put together for the Investigator players to solve.
Lord of the Rings: The Card Game, $17.84 (55% off) - This one is unique in that it's a co-operative Living Card Game. Players create a team of heroes from Tolkien's works and support them with allies both familiar and new. The artwork alone makes this game worth the cost of entry, but I'm happy to say that the game itself is also incredibly well done and fun to play (also great for just two players, though it supports up to 4).
Android: Netrunner the Card Game, $21.59 (46% off) - Netrunner is just plain gorgeous. It has beautiful artwork and sleek, elegant mechanics. I don't have enough good things to say about this game. One player takes on the role of an giant, mega-corporation trying to bring it's plans to fruition while the other plays a Runner hellbent on hacking into the corps' assets for their own gain. The gameplay is completely asymmetric - meaning that the Runner and Corp both have different decks with different cards that have different mechanics. It's a little hard to explain, but imagine Shadowrun meets Bladerunner the card game.
X-Wing: The Miniatures Game (ALL THE SHIPS) - The X-Wing, Y-Wing, TIE Fighter and TIE Advanced single ship expansions are all on sale from 43-57% off. I've got a review for this game that will be up on Sunday, but until then it's Star Wars dogfighting at its tabletop finest. Command squadrons of your favorite pilots from the original trilogy as either the heroic (terrorist) Rebels or the dominating (peace-keeping) Imperials.