Sims 3 store content you couldn't play without?

I bought TS3 for $20 in 2016 and it came with the Late Night expansion pack. That pack is so much fun, I make almost all of my households in Bridgeport because it's my favorite map. I love the ability to make my Sims celebrities and/or vampires, there are so many aspects in that pack that make the base game way less fun to me.