I would not say that a Bitcoin Check is the best way to facilitate immediate private party sales, but business to consumer sales/importation may be possible wit

I would not say that a Bitcoin Check is the best way to facilitate immediate private party sales, but business to consumer sales/importation may be possible with a Bitcoin Check, as the supplier can clear the check before sending goods. Additionally there could be satellite hotspots that could act as exchanges when landline or wireless networks are down. Bitcoin is probably not perfect, but could be useful for money transfer even in areas where the net isn't robust.