I have completed the Prime Member Amazon baby registry with all three of my kids. I was so glad that I did! Once you have completed their registry, you receive a welcome box from them. When I did it, I received a muslin blanket, bottle, wipes, baby lotions, a onesie and a few more items.
Now with my second and third kids, I did not share the registry really with anyone. It was just out there for if anyone wanted to look at it. Which was okay, because Amazon does not require you to share it with anyone.
You do have to meet their certain requirements to complete the registry and get your free welcome box. I think it took me about 20-30 minutes to complete the registry each time. However, it was well worth it for the items you get.
If you decide not to purchase anything new for your kids that you have after your first, I would recommend investing the time to at least register for this to get the new items. It is a easy inexpensive way to receive new items.
As I mentioned at the beginning, you do need to be a Prime member with Amazon to receive this welcome box and it is as supplies last.
*If you do create a registry from my link, I will receive a small commission from Amazon. Disclosure Policy is here.