The administrators can speak to the cost-effectiveness of incorporation and the level of service provided.
The name search is important for businesses that are doing business across the country. If you are of a view that you might want to do business in the international sphere, the Canadian name has a little more cachet than perhaps a provincial name. It's better known. But beyond that, as was said, the laws are slightly different. They're not entirely uniform. It becomes a business decision for the corporation as to where it may wish to incorporate.