A friend had a party recently for a landmark birthday, and not a single person had a camera or took photos. I got mine out to take but it turned out it was broken and wouldn't charge up. So I wanted to, but couldn't.(my phone won't take good photos in low light so that was a no-go too). Their parents, DP and close friends were all there. There was a lovely cake with candles and a silly photo on top. And there aren't any photos to documeht it.
I fully admit I'm a bit of a sop when it comes to this kind of thing. I love photos and the memories that go with them. At DH's do a few months ago there were lots of people with cameras and I love looking at the pics as it was such a good night. This party was good fun, but it makes me a bit sad that there isn't a single photo of it.