I had that a lot last year when I called around basically every dealership in Ontario and few out of province (that was when my wife still insisted we try to find one in stock rather than just order one and wait). Being an Asian guy trying to purchase in cash didn't help things. A few dealerships told me they can sell to me if I finance, others flat out refused no matter what. I didn't want to jump through any hoops so eventually I ended up ordering with a GTA dealer who didn't mention anything about export to me even once.After a day, he got back to me saying that the dealership would rather keep it within the town, apparently folks are exporting Sienna's to China. They wont sell it to out of town folks because of that.
Pity. The guy I spoke with was super nice about it though.