Ok, so spread risks... i mean it has advantages this way too.
At least that's what I'd like to see. Can't speak for anyone else. We should propably do a google group or something so we could spread documents and do polls very easily.
As a later buyer, I would not be overly-offended if somehow those earlier in ended up with some tiny advantage, but it was fairly clear at least past the first or second unit that it would be a group buy. In any case, it's clearly in everyone's interest to spread the risk across all the machines. Would the couple people first in truly be happy if machine one didn't come up and they sat on the sidelines for a week or two while the issue was resolved. Having so many units is really nice with this regard.