UngeheuerLich
Legend
Shame on them.Except they can and add extra digital incentives. Like FREE VIRTUAL MINIS AND DICE!
Oh wait. You can buy bundles where you get both early access and a book later.
I also got my digital version of A5e LevelUp way before I got my printed copy. And while I backed it up, I got some extra boons.
And patreon is not that different from preordering.