I picked up all the huge titles so far, usually at 50% which is great. Still waiting for Farcry 3 though.
I typically only like to play 1 or 2 games at a time so buying up all the titles is a bit pointless for me. I did pickup the Skyrim expansions and Civilization 5 and it's expansions.
Garbage game! I played 400h+ of Rise of Erebus for Civ4 with friends. The fact that you can't play mods online with civ5 defeats the purpose of the civ games. Only the combat was improved. And the hex tiles. That's about it.