I would suspect a few of these wealthy foreigners buying property are trying to make sure there wealth is tied up in something their home state cannot take away ownership of. If it depreciates a bit, it's probably fine. 97% of something is better than nothing. I also suspect they have nice stock portfolios already as well.
Makes sense A lot of Chinese nationals are buying property in the states and Canada in order to accomplish the same thing I wonder how this kind of cash parking affects property values?
But you don't have to guess, just look at property values for anything at all nice in Vancouver. Practically the whole city could not afford to buy a house there on their current income.