343 Inustries Summer Sale: Half off all Halo map packs on the marketplace!

343 Industries are offering ALL Map-packs from Halo 3 and up for 50% less than usual on the Xbox Live marketplace. If you have been speculating about whether you should buy a certain Halo Map-pack or never really wanted to spend the full 800msp most of them are priced at, now is the time to buy!
Look at the prices for the map-packs below:
Halo Wars Strategic Options Pack
800=>400
Halo Wars Historical Battle Map Pack
800=>400
Halo: Reach Defiant Map Pack
800=>400
Halo: Reach Noble Map Pack
800=>400
Halo 3 Mythic II Map Pack
800=>400
Halo 3 Mythic Map Pack
400=>200
The sale is only a week long and ends July 31st so buy these map packs while they're cheap!