Which Stuff Packs do you think are worth buying?

My real answer would be that all of the packs are lacking and I didn't really find that any of them added enough items. I own all of the stuff packs and felt a bit ripped off by them.

However, for the sake of diplomacy, if I had to pick some based on concepts, I would say cool kitchen stuff is a great concept. It's very universal. Everyone (or pretty much everyone) has a kitchen in their sim's house. More kitchen stuff is always a good thing. Perfect patio stuff is a good concept for a stuff pack as well for the same reasons.

I think Spooky Stuff is not horribly useful and it should not have been its own pack. They should have done the same thing with spooky stuff that they did with the Christmas stuff, which is make it free.

So, if I had to pick packs that were worth buying, I guess I would go with cool kitchen and perfect patio.

Romantic Garden stuff pack. It's my favourite so far. I just love the romantic touch to it.

I actually think Cool kitchen is one of the best stuff packs since, as I saw someone mentioned above, every sims household has a kitchen and the clutter that comes with the pack is really neat. My favorite stuff packs besides that is Movie stuff and Romantic garden. They both have some really nice CAS- and builditems.

The stuff packs I never use is Spooky stuff pack and the same goes for Luxury party pack, except for some dresses occasionally. They are, imho, not worth buying.

Well, i do plan on getting them all, because i truly feel uncomfortable if i can't take the full advantage of all the things the game can offer me.
With that said, maybe it is true, maybe some Stuff Packs aren't worth the money (Do notice i'm brazilian, so the packs are actually more expensive than 10$ for me) but i really can't help it, once i'm able to, i'm getting them all.

Much depends on your gameplay and style preferences, of course, but I've found that I use the sparkly formalwear from Luxury Party a lot (it's great for Aliens, entertainers, and rich Sims with questionable taste), I enjoy the movies and popcorn from Movie Hangout and use the decor more than I thought I would, and I love the garden decor and the fountain from Romantic Garden and like that I can use the wishing well to generate a bit of unpredictability when I'm comfortable with that. I have Perfect Patio and Cool Kitchen but use them less in practice.

Well I have Perfect Patio, Cool Kitchen and Movie Hangout stuff, so obviously those are the ones that I thought were worth buying.

I use the outdoor furniture and decor that came with Perfect Patio all the time to make beautiful outdoor entertaining areas. The hot tub is amazing, but the only problem I have with it is so far, my Sims don't seem to stay in it for long, they get distracted and get out of it very quickly...That may just be my sims though! Oh well, the pack was still worth it for the other stuff it came with.

Cool Kitchen stuff, I can't really fault it, I love the modern style kitchen it came with, and the really nice decor items that it came with are cute, and it came with a solid selection of new CAS stuff. The different ice creams are cool to make too. It would have been nice if it came with another kitchen style, but still a good pack.

The bright colours and boho styles of Movie Hangout stuff took some warming up to, but now I love the bright colours and patterns, and I really like the clothes it came with for both men and women. So far though, only one of my Sim families have been lucky enough to have a cinema lounge built into their home, and I've set up a public one in the Ancient Ruins. So most of the time my Sims are just watching the movies on their normal TVs. But they watch them all the time so that's good! I really like that after the movie your Sims can chat about the scenes or the actors in the movie, and declare their favourite genre etc... really neat feature :) The only thing that annoys me about this pack is that the Sims tend to go a bit "Musical Chairs" while watching the movie projector screen :/ Oh well. And lastly, I'll be honest, I haven't even tried the popcorn machine yet! But either way this was a good pack and was worth it!

I haven't bought any. I've heard a lot of players say that they enjoy the new content for a short time and then get bored again.

Spooky Stuff and Romantic Garden Stuff. :)

Luxury Party, Cool Kitchen, and Romantic Garden are all a waste. The only stuff packs I have found use for, to be honest, are the Movie Hangout stuff and Perfect Patio. Luxury Party, Cool Kitchen, and Romantic Garden you can live without. Not only do they not give a lot of content the stuff in them is pretty useless and more than likely will come at another time. Cool Kitchen brings dishwashers (free update), Romantic Garden only has I believe 4 plants... but yet it's for gardens, and Luxury Party isn't necessary unless you're wanting a buffet table that you could create yourself by just cooking a bunch of food. Perfect Patio stuff comes with an assortment of objects that's very attractive and useful, BUT when a hot tub expansion comes out or game pack Perfect Patio will become useless unless you want what it comes with. I really liked Movie Hangout stuff. The Bohemian theme brought something new to include into your house and the movies are pretty neat to watch also the clothing is abundant IMO. Spooky Stuff WILL BE USEFUL when a SEASONS expansion is released, but as of right now you can't do much with it. I recommend getting it if Seasons comes out though and it's similar to Sims 3 with Spooky Day.

I bought all of the stuff packs and from my experience the best answer I can give you is "depends on your gaming style". I'm the type that will use a little bit of everything in the homes I create, or the outfits I put together.