OMG stop with the Horse Armor already! LOL Horses where brand new in Oblivion and of course you wanted to armor your new mode of transportation! There are a lot of dangers in Cyrodiil! Plus, it was like what? $1.99? I was happy they gave me some choices and ways to armor my proud steed!! 
I think so far, I have bought every single DLC Beth ever produced, even on PC, even when having the choice of installing mods. At least with the official DLCs, I have the peace of mind, knowing that they will actually work with my game and don't break anything. Plus, they usually expand on the story line, which is why I get them in the first place. Morrowind and Oblivion DLCs were great! Fallout 3... well, ok I guess (MZ let's not talk about that one... lol), NV brilliant and here's hoping that Fallout 4 will provide us with some amazing DLCs!
(pretty please?)