There are two kinds of DLC's. Content packs and expansions.
Bethsoft's content packs are exactly what content packs should be. Cheap and dirty little things to keep revenue coming in.
Expansions, on the other hand, are expected to be large, and with Bethsoft they always are.
I don't understand the objection to the horse armor content pack. It was $2.50. Seriously, that's a lot of stuff for such a small amount of money. And if you don't want it, don't buy it, the only stuff it was required for were some mods made by careless modders who don't pay attention to dependencies.
The going rate now is $.99 a gun for content.