A good thing about pre-ordering is that we've already spent the money, and alot of folks will not thus be tempted to just download the svcker off one of the hax sites and Not buying the game - which is where it hurts Obsidian and Bethesda. I know there are stats out there in which (on average) it only takes X days for a game to get hacked and will loose Y amount of profit in the end, and it seems that is never stronger in the age of peer 2 peer. The pre-ordering setup removes Some of that damage at least.
I always buy my games, I never hack them or use hacked games as that hurts the very companies when all I want to do is support them so they grow and make more cool games faster.
3 copies pre-ordered (1 for friend) and I'm getting the hardcover strategy guide. I think that's enough support for one game.