|I think the main problem is the lack of people with dvd burner …
And DVD readers, honestly. Of the five computers I’ve been testing Woody on, one of them has a DVD-ROM drive. While I could put the other four on a network and use the DVD-capable fifth as a package source, in many situations it wouldn’t be feasible. (Namely, two of the other four are at a different site and so are not conveniently networkable to the DVD source.) This sort of smacks of the whole “why do we only have packages compiled for 386?” controversy: the tension between innovation and backwards compatibility.
Don’t get me wrong, I’d like a DVD available, too, but preferably through purchase. I can claim no expertise, I don’t imagine that the overall benefit of a massively mirrored DVD image outweighs the burden of distribution, yet.