Buying packs and intentionally not using the main feature

With the exception of Laundry Day, Romantic Garden Stuff, and My First Pet Stuff, I've at least played with the main features of every pack once. But there are several that I don't play with often or at all after that initial test. Still, there are no packs I regret getting because I've also found something worthwhile in every pack. Even when there are a ton of bugs.