I wondered about that too but he would not go into details.He says he saves more money that way. He even goes as far to order Canadian parts through a distributor in the states because it's cheaper than buying in Canada go figure.
The place I visited in BC this June had 4-wheelers that the owners bought in Kalispell, Montana (no sales tax). They then took them to Canada through Alberta, and licensed them there. Then they distributed them to their other sites, including BC. I bet they saved a ton doing it that way.