I agree that Luxury Party is forgettable, but I'm going to be the wild card here and say that I love the others. Granted, I did buy most of them on sale.
I use the Movie Hangout decor and CAS all the time. It has some of my favorite pieces that I use over and over for different households. I would note that there are some more neutral swatches than you can see on the website for most of the items, which for me, makes them more versatile than you might think at first. Also, what can I say, most of my sims like to make popcorn and watch a movie. Edited to add: I don't know why it doesn't show up in the CAS listing on the website, but there are a few accessories that I could swear are from Movie Hangout, including a very classy, sort of vintage looking watch that I probably use for about half of my female sims.
Spooky stuff seems essential to me if you have Seasons, particularly if you like to throw parties. Even if it's just for the pumpkin carving station and the candy bowl, it's well worth it on sale. The costumes are cute, too; the only downside is that you can't select them to "change into costume" for Seasons holiday purposes. I keep hoping that someday they will add the cross pack integration for that.
Perfect Patio... actually, that's pretty meh for me, too. I always get it confused with Backyard Stuff, but BL is actually the one that has the drink tray, bird feeder, wind chimes, and slip & slides. But, Perfect Patio does have two of my favorite swimsuits that I use all the time, so it was still sort of worth it to me.
But everyone's taste is very different, so ultimately, you should look at the B/B and CAS pictures for yourself and decide whether you think you would actually use them enough to be worth it. For me, if it's on sale, it's usually worth it if there are at least 3-4 items that I really like.