The thing about "what do I need for my baby" questions is that every kid is different and every parent is different. So you'll see a list of "10 must-haves for every new parent" and then comments essentially saying "X was the best thing ever, but we never used Y", where X and Y are every single thing on the list.
But, at any rate, here's my $0.02:
5. Bibs. I don't think you actually need as many as people think you do. Maybe I'm just OK with my kids being messier than most, but I had way more bibs than I ever used.
6. Baby food processors don't do anything that your regular food processor doesn't. Cooking one-handed doesn't actually work, like, at all, and at any rate my kids hated appliance noises. My husband and I made all kinds of purees for our kids and the absolute best thing was a stick blender. We have a Cuisinart brand, but really anything decent will work. And then you can use it for soups, sauces, homemade mayonnaise, whipped cream or any number of other things.
7. I WAAAAAY overbought on freezer bags. Even with breastfeeding for 2 years, I didn't go through the 200 I registered for. You only really need to freeze milk when you're building up your supply, you're traveling without the kid or you're producing more than the kid is drinking (like right after a growth sprurt). Generally, I pumped into bottles that my kids would then drink from the next day. At any given time there'd be maybe 15-20 bags in the freezer. So, yeah, you need these, but don't go crazy.
8. Be aware that the diaper creams that work with cloth diapers are way more expensive than those for disposables. The cost/benefit of cloth still works out great even with this, but if you're not sure about either one, don't register for too much of either kind of cream. My faves are California Baby for cloth and Desitin for disposable.
9. Pacifiers. I could never get my kid to take them. I had all sorts of really cute ones too, and ones that were shaped for different developmental stages. None ever got used.
11. I don't think you need this. Even if you need white noise, a regular AM/FM radio tuned between stations works. And anyway, my kids' room faces a very busy street, and now I wouldn't change that for the world because they'll sleep through anything. Meanwhile, I have a 13 year old relative who still needs his baby noise machine to sleep.
13. From a safety perspective, packs are better than wraps under typical use. Basically, they're just less easy to screw up putting the kid in. I didn't like my Chicco one too much, but since my kids outgrew them I've seen Ergobaby ones everywhere. And they look awesome.
What are you missing? Have you considered:
Boppy: This was the best thing ever for breast or bottle feeding. Yeah, you can use regular pillows, but it's not nearly as easy or comfortable.
Changing table: I use an old dresser and my parents made a pad for the top.
Diaper pail: My mom saved the one me and my siblings used (of all the things to save, right?!), but if she hadn't I would have just bought a foot-pedal trash can. I use Planet Wise pail liner bags; I have two and one gets washed with each load of cloth diapers.
Wipes: You'll probably want some for disposables, but for cloth I just use squares cut out of old undershirts. It's not pretty, but it does the job of cleaning up poop.
Toy/book storage: It's insane how much people buy for kids, and then you have to find a way to manage the mess.
Bottles and baby spoons
Breast pump: Probably don't register for it, you can get it for free through health insurance.
Hope this helps!