http://www.ebgames.ca/pc/games/sid-meiers-civilization-v-gold-edition/315822
Basically you get the base game with all the DLCs
including God and kings for $50
Amazon's having a really good deal now though
http://mabination.com/threads/66324-Amazon-Civ-5-GOTY-Gods-and-King-Civ-4-Complete-and-Stronghold-for-20-USD?highlight=amazon
Base game + gods and kings + civ 4 complete+ stronghold collection for $20
the other dlcs is not that great except for Korea
where you can go for a 1700 ADish science victory
Korea is like $5, and the Civ series often goes on sale