Since it is MY money, I haven't pre-ordered a WOZ yet.
I WILL own an WOZ someday. I think it looks absolutely stunning, and I think a lot of people are going to be really surprised by how it plays when it comes out. No insider knowledge, just that I feel like I can look at a prototype and see future potential where a lot of people don't seem to do that. It looks great, and will only get better.
But I generally never pre-order machines. I'm okay with missing out on the bling and getting one a few months after it is out or even a little later so I can figure out both money and space for it.
I did instead order an XMLE. I love Borg games, and I think that the limited nature of that one will make it nearly impossible to find in a few months.
So.... if he wants the bling, stay the course. If not, get something now, and rebuy later... just knowing that the eye candy and value of the WoZ that he ends up with might not be as amazing as the one he could have had.