I picked up The 11th Hour, an adventure mystery game pack, and Gorky 17, all for around $8. I'm a sucker for adventure games, so I'll probably be doing more digging and finding some more obscure adventure titles.
I picked up that Firaxis pack, Civ IV, Civ V and Xcom for 20 bucks. I also got Mark of the Ninja and the pack with the first two Bioshocks and Spec Ops. Around 33 dollars, I'm pretty happy with those buys.