I don't think you're alone, I've seen several people posting recently about being bored with no new gameplay since CoL. Kits are ok, if you're into CAS stuff, but that doesn't add any actual gameplay to the game, that just adds aesthetics to your sim's look. And most of the kits don't even add more hair or shoes (unless they're attached to an outfit) or anything like that.
I do agree that the Wedding pack is pretty darn skimpy with nothing much added that can be used every day, besides the slow dancing, which I am glad about and the new world is a plus.
But I don't do weddings in my game, and if I did I sure wouldn't be having one every time I played, so I get your frustration.
Hopefully the next pack offers up some fun and unique game play with less focus on the fluff-n-stuff.