Because, just like with DTs this year, last year, after the first two top DEs there wasn't much diffference between the # 5 DE and the # 8 or # 9 DE. (sbnation.com)
This is not an exhaustive list of diffferences and sometimes similarites make it hard to be certain. (ecsca.info)
And it still will cost dollars, so the only diffference is there'll not be taxes and importation prices. (mariopartylegacy.com)