> Seriously though, why still publish CD formats when a usb-stick is far more ubiquitous and much easier to actually write. Are there systems that can boot CD-ROM interfaces that don't have USB boot capability still?

I mean, you could also ask "why use NetBSD when Linux or even Windows is much more ubiquitous and much easier to install?", but I feel like that would be missing the point. Once you're off the beaten path, you have to update your priors a bit about how likely it is to need to support something that isn't as common.