It's pretty easy to just pay, I'll give you that.

For an example of just how good their image is:

I set my companies up almost a year ago, had to deal with it about once.

The docs cover a HA setup (if you really need it - most won't), data backups aren't really needed if you're using a storage backing, and I just use local file system - absolute worst case I have to wait half an hour to rebuild and push everything.

The downside risk of running your own is very low. The upside is a few bucks and you have your own private registry local to your network.