The Sims 4 (as of March 2016) has 6 Stuff Packs, each cost $10. There are some Stuff Packs that I and some Simmers question if they're worth buying? Perfect Patio, Cool Kitchen, and possibly Romant...
I haven't bought any because I'm not interested in them enough to pay the $10. A lot of it looks like stuff we'd get during a free update mixed in with 1 or 2 gameplay items