Buying packs and intentionally not using the main feature

If I think a pack will positively impact my game, I get it. I bought Vampires for build/buy, but ended up using it for everything. I surprisingly enjoyed a bunch of packs I thought I wouldn't like that much (Vampires, Jungle Adventures, Fitness Stuff, Island Living...) so I've been more willing to buy packs if I can identify a few things I think I'll like. I tend to end up liking/discovering more. The only pack I don't have/don't want is Star Wars.