I think DD must be right, because there are funds like IYR (I don't know about Canadian equivalents) that would be a much less expensive way to get the same real estate market exposure, so the question is why isn't the money going there?
I know the article is about empty properties, but it's actually a lot more common to send your 18-year-old kid to study in Canada and wire him $1 million to buy a primary residence in his own name.
But it's true you can't get quite as much leverage and the dividends and capital gains are not tax deductible like they are for your primary residence.