USA Spec means nothing really in terms of warranty.. You don't get an authorized dealer receipt and Canon will not recognize it for warranty purposes without one. As stated by dradler, this will be considered Gray Market by Canon and you will be charged for any service should you need it. If you're willing to take that chance, it's a good price, but Canon will run these on special from Authorized dealers from time to time. Canon also offers refurbished models which come with a full warranty (when in stock).