Big Value is once again selling Canon 5DII bodies on eBay. This time the going price is $2,599.
Note: Although the Big Value auction says "Canon USA Warranty", in some cases Big Value has shipped a 5DIII body with no "Canon USA & Canada" 2-part warranty card. Some people get the card, others just get a slip of paper that says "Register your camera at www.canon...."
If your camera arrives with NO CANON USA & CANADA 2 piece warranty card, it is likely GREY MARKET.
Canon **may** still fix it under warranty in the US, at their discretion. You would be better off calling Big Value and insisting on a Canon USA product with warranty cards. They might offer you an additional discount, and/or a 3rd party warranty. At that point it is your decision on whether to accept their offer or return the camera.
The best criteria to determine whether you have a true Canon USA body is that 2 PIECE warranty card.