Included in the $39.99 (USD) package is the base game and all previously released DLC.
Clash In the Clouds - Combine weapons, Vigors, Gear, Tears, and Sky-Lines in ways you never thought possible as you square off against impossible odds. This pack puts an intense focus on combat and features 60 challenges in four brand-new maps. Complete Blue Ribbon Challenges and unlock concept art, Voxophones, Kinetoscopes, and more in The Columbian Archeological Society.
Burial at Sea - Episode One - Come back to Rapture in a story that brings Booker and Elizabeth to the underwater city on the eve of its fall from grace. Burial at Sea - Episode One features Rapture as you've never seen it before - a shining jewel at the bottom of the ocean, built almost entirely from scratch in the BioShock Infinite engine. Gameplay has been modified to give the player an original BioShock combat experience that merges the best parts of BioShock and BioShock Infinite. It includes new weapons and abilities as well as the return of the weapon wheel. Explore the city at the height of its beauty, meet some old "friends", and make some new ones, all through the eyes of Booker DeWitt.
Burial at Sea - Episode Two - See the world through Elizabeth's eyes in this final episode of the Burial at Sea saga. Set immediately after the conclusion of Burial at Sea - Episode One, this episode puts you in the role of Elizabeth as she journeys through Rapture in an effort to rescue the little sister she abandoned. It features parts of Rapture you've never seen before, incudes modified stealth-oriented gameplay that brings you new weapons and plasmids, and involves nearly every major character from the original BioShock and BioShock Infinite. Burial at Sea - Episode Two is the last of three BioShock Infinite add-on packs and it concludes the storyline of BioShock Infinite and Burial at Sea.
Columbia's Finest Pack - This pack combines the contents of the Industrial Revolution Pack and the Upgrade Pack, originally part of the Premium and Ultimate Songbird Editions of BioShock Infinite. Start your game with 500 Silver Eagles (in-game currency), 5 Lock Picks to help you navigate through Columbia, and six unique Gear items. The Gear items in this pack, Handyman Nemesis, Sugar Rush, Fleet Feet, Bull Rush, Extra! Extra!, and Betrayer provide damage bonuses, movement speed bonuses or loot bonuses. In addition, this download grants access to two weapon upgrades: Comstock's China Broom Shotgun and Comstock's Eagle Eye Sniper Rifle.
Early Bird Special Pack - This instant bonus pack contains four pieces of exclusive gear for BioShock Infinite, a Machine Gun Damage Upgrade, a Pistol Damage Upgrade, a gold skin for both weapons and five Infusion bottles that allow players to increase their health, their shield durability or their ability to use Vigors by increasing the quantity of Salts they can carry
So that's like... $60 plus the DLC, carry the 1, that's like a lot of content for $40.