Games Whose DLC Needs to go on Sale

I can't complete these games without the DLC. But I don't want to pay full price for the DLC. Here's hoping for a sale soon.

• 
  Mafia II 360

  Added: 10-05-2013 01:12 AM
• 
  Halo 4 360

  Added: 10-05-2013 01:12 AM
• 
  Defense Grid: The Awakening XBLA

  Added: 10-05-2013 01:11 AM
• 
  Forza Horizon 360

  Added: 10-05-2013 01:10 AM