My reasons for buying an incubator were:
1. I have several broody hens and I wanted a backup plan if something happened to one who was sitting.
2. I lost a great rooster several years ago. He was my only one, at that time. If I'd had an incubator, I could have kept his line going.
3. I have a better hatch rate than the hens do, and that always raise the chicks. Win win.
4. I don't trust the post office to get chicks to me safely.
I have to say, I bought the brinsea because the NR360 was sold out. I'm not sorry, because the brinsea mini limits my population growth.

I do feel like the NR360 is probably a better deal for most people.