Welcome to Geekhack!
It leaves a sour taste in the mouth when your first mechanical keyboard is DOA. This is definitely not the case for mechanical keyboards in general, so don't be put off. Once you get it and it works, you'll never look back.
Oh and I don't recall anyone ever having received an HHKB that was DOA. Or, in fact, an HHKB that ever died. Just sayin'