Dhruin
SasqWatch
Bethsoft's has a sense of humour about Horse Armour, it seems. Here's an email from Pete Hines:
More information.In celebration of the arrival of April, the wackiness of April Fool’s Day, and the upcoming 3rd anniversary of the release of Horse Armor (Friday, April 3), we are pleased to announce that for the next week all Oblivion DLC for Xbox 360 is half price, except for Horse Armor, which is twice as much as usual. So if you’ve been waiting for just the right moment to get The Vile Lair, or Knights of the Nine, or Shivering Isles, now is the time.
As always you can get your DLC on Xbox Live or through the marketplace on Xbox.com.