You probably wouldn't, but I'm sure the fact that a Woo amp (I can't speak for Craig) has a much more reasonable lead time is a leading factor in the decision. Of course I'm not sure I'm sold on all of Woo's upgrade packages, but that's another thread.
No doubt the Audio GD fans will love it. As far as the next FOTM company goes, there have been plenty since the downfall of SP. That said, I think that if it performs decently well, it'll be fine.